If E, G, J and m represent energy, universal gravitational constant angular momentum and mass respectively, then dimensions of \[\frac{E{{J}^{2}}}{{{m}^{5}}{{G}^{2}}}\] are those of:
A)
Mass
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B)
Length
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C)
Time
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D)
Angle
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Time period of a simple pendulum measured inside a stationary lift is T. If the lift starts moving upwards with an acceleration of \[\frac{g}{3}\] , what will be its time period:
A)
\[\frac{T}{3}\]
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B)
3T
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C)
\[\frac{\sqrt{3}T}{2}\]
done
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D)
\[\sqrt{\frac{3}{2}}T\]
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Particle of mass 0.3kg is subjected to a force F = -kx with k = 15N/m. What will be its initial acceleration of it is released form a point 20cm away from the origin:
A)
\[3m/{{s}^{2}}\]
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B)
\[5m/{{s}^{2}}\]
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C)
\[15m/{{s}^{2}}\]
done
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D)
\[10m/{{s}^{2}}\]
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The diagram shows the change \ in length of a thin uniform wire caused by the application of stress F, at two different temperatures\[{{T}_{1}}\And {{T}_{2}}\]. The variations shows suggest that:
A)
\[{{T}_{1}}> {{T}_{2}}\]
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B)
\[{{T}_{1}}< {{T}_{2}}\]
done
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C)
\[{{T}_{1}}= {{T}_{2}}\]
done
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D)
None
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A particle of mass m moves with constant speed along a circular path of radius r under the action of a force F. Its speed is:
A)
\[\sqrt{\frac{rF}{m}}\]
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B)
\[\sqrt{\frac{F}{r}}\]
done
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C)
\[\sqrt{Fmr}\]
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D)
\[\sqrt{\frac{F}{mr}}\]
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If a vector is \[2\hat{i}+3\hat{j}+8\hat{k}\]perpendicular to the vector 4j - 4i + ak, then the value of a is:
A)
\[-1\]
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B)
\[-\frac{1}{2}\]
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C)
\[\frac{1}{2}\]
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D)
\[1\]
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The Boolean equation for the circuit given in the figure:
A)
\[\operatorname{Y}=\bar{A}.B+C\]
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B)
\[\operatorname{Y}=\bar{A}.\left( \bar{B}+\bar{C} \right)\]
done
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C)
\[\operatorname{Y}=\bar{A}.\left( B+\bar{C} \right)\]
done
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D)
\[\operatorname{Y}=\bar{A}.\left( B+C \right)\]
done
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The surface energy of a liquid drop is u. It is splitted into 103 equal droplets. Then its surface energy becomes:
A)
u
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B)
10u
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C)
100u
done
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D)
1000u
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If the momentum of an electron is changed by P, then the de-Broglie wavelength associated with it changes by 0.5%. The initial momentum of electron will be:
A)
200P
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B)
400P
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C)
\[\frac{P}{200}\]
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D)
100P
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A magnetic needle is placed in a uniform magnetic field and is aligned with the field. The needle is now rotated by an angle of \[60{}^\circ \] and the work is W. The torque on the magnetic needle at this position is:
A)
\[2\sqrt{3}W\]
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B)
\[\sqrt{3}W\]
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C)
\[\frac{\sqrt{3}}{2}W\]
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D)
\[\frac{\sqrt{3}}{4}W\]
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If an electron in hydrogen atom jumps from an orbit of level n = 3 to an orbit or level n = 2, emitted radiated has a frequency:
A)
\[\frac{3Rc}{27}\]
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B)
\[\frac{Rc}{25}\]
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C)
\[\frac{8Rc}{9}\]
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D)
\[\frac{5Rc}{36}\]
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Circular loop bf a wire and a long straight wire carry current \[{{\operatorname{I}}_{c}} and {{I}_{e}}\]respectively as shown in figure. Assuming that these are placed in the same plane. The magnetic field will be zero at the centre of the loop when the separation H is:
A)
\[\frac{{{I}_{e}}R}{{{I}_{c}}\pi }\]
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B)
\[\frac{{{I}_{\operatorname{c}}}R}{{{I}_{\operatorname{e}}}\pi }\]
done
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C)
\[\frac{\pi {{I}_{\operatorname{c}}}}{{{I}_{\operatorname{e}}}R}\]
done
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D)
\[\frac{{{I}_{\operatorname{c}}}\pi }{{{I}_{\operatorname{e}}}R}\]
done
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Force F on a particle moving in a straight line varies with distance d as shown in the figure. The work done on the particle during its displacement of 12m is:
A)
21J
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B)
26J
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C)
13J
done
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D)
18J
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Light of wavelength \[0.6\mu m\]from a sodium lamp falls on a photo cell and causes the emission of photoelectrons for which the stopping potential is 0.5V with light of wavelength 0.4nm from a sodium lamp, the stopping potential is 1.5V, with this data the value of \[\frac{h}{e}\]is:
A)
\[4\times 1{{0}^{-19}}V.s\]
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B)
\[0.25\times 1{{0}^{-15}}V.s\]
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C)
\[4\times 1{{0}^{-15}}V.s\]
done
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D)
\[4\times 1{{0}^{-8}}V.s\]
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The compressibility of water is\[6\times 1{{0}^{-10}} {{N}^{-1}} {{m}^{2}}\]. If l(ltr) is subjected to a pressure of\[4\times 1{{0}^{7}} N / {{m}^{2}}\], the decrease in its volume is:
A)
10cc
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B)
24cc
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C)
15cc
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D)
12cc
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The transfer characteristics of a base biased transistor has the operation regions, namely, cut off, active region and saturation region. For using the transistor as amplifier it has to operate in the region:
A)
Active
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B)
Cut off
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C)
Saturation
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D)
Cut off and saturation
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Which one of the following graphs shows the variation of acceleration due to gravity with depth h from the surface:
A)
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B)
done
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C)
done
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D)
done
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A current of 5A is flowing at 220V in the primary coil of a transformer. If the voltage produced in the secondary coil is 220V and 50% of power is lost, then the current in secondary will be:
A)
2.5A
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B)
5A
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C)
0.25A
done
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D)
0.5A
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A racing car is traveling along a track at a constant speed of 40m/s. A TV cameraman is recording the event from a distance of 30 m directly away from the track as shown in figure in order to keep the car under view, at what angular speed must the camera be rotated [in rad/sec]:
A)
1
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B)
3
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C)
5
done
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D)
4
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In a potentiometer of one metre length, an unknown emf voltage source is balanced at 60cm length of potentiometer wire, while a 3V battery is balanced at 45cm length. Then, the emf of the unknown voltage source is:
A)
3V
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B)
2.25V
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C)
4V
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D)
4.5V
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If radius of the \[^{27} A{{l}_{13}}\]nucleus is taken to be\[{{\operatorname{R}}_{Al}}\], then the radius of \[^{125} T{{e}_{53}}\]nucleus is nearly.
A)
\[{{\left[ \frac{13}{53} \right]}^{{}^{1}/{}_{3}}}{{R}_{Al}}\]
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B)
\[{{\left[ \frac{53}{15} \right]}^{{}^{1}/{}_{3}}}{{R}_{Al}}\]
done
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C)
\[\frac{5}{3}{{R}_{Al}}\]
done
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D)
\[\frac{3}{5}{{R}_{Al}}\]
done
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An ideal gas is taken through a cyclic thermo dynamical process through four steps \[{{\operatorname{Q}}_{4}}=\]3645J, respectively. The corresponding works involved are \[{{\operatorname{W}}_{1}}=2200J, {{W}_{2}}= -825\]J \[{{\operatorname{W}}_{3}} = -1100J and {{W}_{4}}\]respectively. The value of \[{{W}_{4}}\]is:
A)
1315J
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B)
275J
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C)
765J
done
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D)
675J
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An asteroid of mass m is approaching earth, initially at a distance of \[10{{R}_{e}} with speed {{V}_{1}}.\] It hits the earth with a speed V (R and M radius and mass of earth), then:
A)
\[{{\operatorname{V}}^{2}}_{f}={{V}_{1}}^{2}+\frac{2GM}{{{M}_{e}}R}\left[ 1-\frac{1}{10} \right]\]
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B)
\[{{\operatorname{V}}^{2}}_{f}={{V}_{1}}^{2}+\frac{2GM}{{{R}_{e}}}\left[ 1+\frac{1}{10} \right]\]
done
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C)
\[{{\operatorname{V}}^{2}}_{f}={{V}_{1}}^{2}+\frac{2GMe}{{{R}_{e}}}\left[ 1-\frac{1}{10} \right]\]
done
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D)
\[{{\operatorname{V}}^{2}}_{f}={{V}_{1}}^{2}+\frac{2GM}{{{R}_{e}}}\left[ 1-\frac{1}{10} \right]\]
done
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A spherical ball A of mass 4kg, moving in a straight line strikes another spherical ball B of mass 1kg at rest. After the collision, A and B move with velocities \[{{\operatorname{V}}_{1}}m/s and {{V}_{2}}m/s,\]respectively makes angles of \[30{}^\circ and 60{}^\circ \] with respect to the original direction of motion of A. the ratio \[\frac{{{\operatorname{V}}_{1}}}{{{V}_{2}}}\] will be:
A)
\[\frac{\sqrt{3}}{4}\]
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B)
\[\frac{4}{\sqrt{3}}\]
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C)
\[\frac{1}{\sqrt{3}}\]
done
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D)
\[\sqrt{3}\]
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If the length of an open organ pipe is 33.3cm, then the frequency of fifth overtone is: (\[{{\operatorname{V}}_{sound}}\]=333m/s)
A)
3000Hz
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B)
1500Hz
done
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C)
2500Hz
done
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D)
1250Hz
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The masses of the wires of copper are in the ratio 5 : 3 : 1 and their lengths are in the ratio 1:3:5. The ratio of their electrical resistances is:
A)
5:3:1
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B)
\[\sqrt{125}:15:1\]
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C)
1:15:125
done
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D)
1:3:5
done
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A stone falls freely under gravity it covers distances \[{{h}_{1}}, {{h}_{2}} and {{h}_{3}}\]in the first 5sec, the next five sec and the further next 5sec respectively. The relation between\[{{h}_{1}}, {{h}_{2}} and {{h}_{3}}\]is:
A)
\[{{\operatorname{h}}_{1}}=2{{h}_{2}}=3{{h}_{3}}\]
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B)
\[{{\operatorname{h}}_{1}}=\frac{{{h}_{2}}}{3}=\frac{{{h}_{3}}}{5}\]
done
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C)
\[{{\operatorname{h}}_{2}}=3{{\operatorname{h}}_{1}}\operatorname{and}\,\,{{\operatorname{h}}_{3}}=3{{\operatorname{h}}_{2}}\]
done
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D)
\[{{\operatorname{h}}_{1}}={{h}_{2}}={{h}_{3}}\]
done
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One mole of an ideal monoatomic gas undergoes a process described by the equation \[{{\operatorname{PV}}^{3}} =\]constant. The heat capacity of the gas during this process is:
A)
R
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B)
\[\frac{3R}{2}\]
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C)
\[\frac{5R}{2}\]
done
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D)
2R
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The wavelength of the light used in Young's double slit experiment is\[\lambda \]. The intensity at a point on the screen is I, where the path difference is\[\frac{\lambda }{6}\]. If \[{{\operatorname{I}}_{o}}\]denotes the maximum intensity, then the ratio of I and I is:
A)
0.866
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B)
0.5
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C)
0.707
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D)
0.75
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Which of the following graphs cannot possible represent one dimensional motion of a particle:
A)
I
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B)
II
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C)
Ill & IV
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D)
All
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When a resistance \[{{\operatorname{R}}_{1}}\]is connected across the terminal of a cell, the current is \[{{\operatorname{I}}_{1}}\], when the resistance is changed to\[{{\operatorname{R}}_{2}}\], the current is \[{{\operatorname{I}}_{2}}\].The internal resistance of the cell is:
A)
\[\frac{{{I}_{1}}{{R}_{1}}+{{I}_{2}}{{R}_{2}}}{{{I}_{1}}+{{I}_{2}}}\]
done
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B)
\[\frac{{{I}_{1}}{{R}_{2}}+{{I}_{2}}{{R}_{1}}}{{{I}_{1}}+{{I}_{2}}}\]
done
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C)
\[\frac{{{I}_{1}}{{R}_{2}}+{{I}_{2}}{{R}_{1}}}{{{I}_{1}}-{{I}_{2}}}\]
done
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D)
\[\frac{{{I}_{2}}{{R}_{2}}+{{I}_{1}}{{R}_{1}}}{{{I}_{1}}-{{I}_{2}}}\]
done
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A transparent cube of 15cm edge contains a small air bubble. Its apparent depth when viewed through one face is 6cm and when viewed through the opposite face is 4cm. Then, the refractive index of the material of the cube is:
A)
2
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B)
2.5
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C)
1.6
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D)
1.5
done
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A smooth block is released at rest on a \[45{}^\circ \] incline and then slides a distanced. The time taken to slide is n times as much to slide on rough incline, than on a smooth incline. The coefficient of friction is:
A)
\[{{\mu }_{\operatorname{k}}}=1-\frac{1}{{{\operatorname{n}}^{2}}}\]
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B)
\[{{\mu }_{\operatorname{k}}}=\sqrt{1-\frac{1}{{{\operatorname{n}}^{2}}}}\]
done
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C)
\[{{\mu }_{\operatorname{s}}}=1-\frac{1}{{{\operatorname{n}}^{2}}}\]
done
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D)
\[{{\mu }_{\operatorname{s}}}=\sqrt{1-\frac{1}{{{\operatorname{n}}^{2}}}}\]
done
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A stream line body with relative density p falls into air from a height h on the surface of a liquid of relative density \[{{\rho }_{2}}, where {{\rho }_{2}}> {{\rho }_{1}}\]the time of immersion of the body into the liquid will be:
A)
\[\operatorname{t}=\sqrt{\frac{2h}{g}}\times \frac{{{\rho }_{1}}}{{{\rho }_{2}}}\]
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B)
\[\operatorname{t}=\sqrt{\frac{2h}{g}}\times \frac{{{\rho }_{2}}}{{{\rho }_{1}}}\]
done
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C)
\[\operatorname{t}=\sqrt{\frac{2h}{g}}\]
done
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D)
\[\operatorname{t}=\sqrt{\frac{2h}{g}}\times \frac{{{\rho }_{1}}}{{{\rho }_{2}}-{{\rho }_{1}}}\]
done
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In the figure a potential of 1200V is given to point A and point B is earthed, what is the potential at the point P:
A)
100V
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B)
200V
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C)
400V
done
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D)
800V
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A 50Hz AC current of crest value 1A flows through the primary coil of transformer. If mutual induction between primary and secondary is 1.5H, the crest voltage induced in the secondary coil is:
A)
272V
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B)
320V
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C)
415V
done
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D)
471V
done
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Two particles of masses 1kg and 3kg have position vectors \[2\hat{i} + 3\hat{j} + 4\hat{k} and -2\hat{i}+3\hat{j}-4\hat{k}\] respectively. The centre of mass has a position vector:
A)
\[\hat{i}+3\hat{j} -2\hat{k}\]
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B)
\[-\hat{i}-3\hat{j} -2\hat{k}\]
done
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C)
\[-\hat{i}+3\hat{j} +2\hat{k}\]
done
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D)
\[-\hat{i}+3\hat{j} -2\hat{k}\]
done
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The potential energy at a point due to an electric dipole will be maximum and minimum when the angles between the axis of the dipole and the line joining the point to the dipole are respectively:
A)
\[90{}^\circ and 180{}^\circ \]
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B)
\[0{}^\circ and90{}^\circ \]
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C)
\[90{}^\circ and 0{}^\circ \]
done
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D)
\[0{}^\circ and 180{}^\circ \]
done
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A jet of water with cross sectional area 'a' is striking against a wall at an angle 6 to the horizontal and rebounds elastically. If the velocity of water jet is v and the density is p, the normal force acting on the wall is:
A)
\[2{{\operatorname{av}}^{2}}\rho cos\theta \]
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B)
\[{{\operatorname{av}}^{2}}\rho cos\theta \]
done
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C)
\[2\operatorname{av}\rho cos\theta \]
done
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D)
\[\operatorname{av}\,cos\theta \]
done
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The potential difference between A and B in the following figure is:
A)
32V
done
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B)
48V
done
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C)
24V
done
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D)
14V
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The temperature of n moles of an ideal gas is increased from T to 4T through a process for which pressure \[\operatorname{P} = \frac{a}{T}\]where is a constant. The work done by gas is:
A)
nRT
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B)
4nRT
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C)
2nRT
done
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D)
6Nrt
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A stone of mass 2kg is tied to a string of length 0.5m if the breaking tension of the string is 900N, then the maximum angular velocity, the stone can have in uniform circular motion is:
A)
30rad/s
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B)
20rad/s
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C)
10rad/s
done
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D)
40rad/s
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Which of the substances A, B and C has the lowest heat capacity, if heat is supplied to all of them at equal rates/The temperatures versus time graph is shown:
A)
A
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B)
B
done
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C)
C
done
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D)
Equal for all
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A cubical block of side 10cm floats at the interface of an oil and water. The pressure above that of atmosphere at the lower face of the block is:
A)
\[200N/{{m}^{2}}\]
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B)
\[680N/{{m}^{2}}\]
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C)
\[400N/{{m}^{2}}\]
done
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D)
\[-800N/{{m}^{2}}\]
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A rod of length L and mass M is acted on by two unequal forces \[{{\operatorname{F}}_{1}} arid {{F}_{2}} \left( < {{F}_{1}} \right)\]as shown in the figure. The tension in the rod at a distance y from the end A is given by:
A)
\[{{\operatorname{F}}_{1}}\left[ 1-\frac{y}{L} \right]+{{\operatorname{F}}_{2}}\left[ \frac{y}{L} \right]\]
done
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B)
\[{{\operatorname{F}}_{2}}\left[ 1-\frac{y}{L} \right]+{{\operatorname{F}}_{1}}\left[ \frac{y}{L} \right]\]
done
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C)
\[\left( {{\operatorname{F}}_{1}}-{{\operatorname{F}}_{2}} \right)\frac{y}{L}\]
done
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D)
None of these
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View Answer play_arrow
Ozone in the stratosphere is depleted by:
A)
\[{{\operatorname{CF}}_{2}}C{{l}_{2}}\]
done
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B)
\[{{\operatorname{C}}_{7}}{{H}_{16}}\]
done
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C)
\[{{\operatorname{C}}_{6}}{{H}_{6}}C{{l}_{6}}\]
done
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D)
\[{{\operatorname{C}}_{6}}{{F}_{6}}\]
done
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LPG mainly contains:
A)
Methane
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B)
Methane and ethane
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C)
Hydrogen, methane and ethane
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D)
Butane and isobutene
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View Answer play_arrow
\[{{\left( {{\operatorname{CH}}_{3}} \right)}_{3}}MgCl\]on reaction with\[{{\operatorname{D}}_{2}}O\]produces:
A)
\[{{\left( {{\operatorname{CH}}_{3}} \right)}_{3}}CD\]
done
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B)
\[{{\left( {{\operatorname{CH}}_{3}} \right)}_{3}}OD\]
done
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C)
\[{{\left( {{\operatorname{CD}}_{3}} \right)}_{3}}CD\]
done
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D)
\[{{\left( {{\operatorname{CD}}_{3}} \right)}_{3}}OD\]
done
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View Answer play_arrow
The IUPAC name for the compound:
is:
A)
2-cyclopentylpropane
done
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B)
1, 1-dimethyl-1-cyclopentylmethane
done
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C)
(1-methylethyl) cyclopentane
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D)
1-cyclopentyl propane
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View Answer play_arrow
Which of the following imparts green colour to the burner flame?
A)
\[\operatorname{B}{{\left( OMe \right)}_{3}}\]
done
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B)
\[\operatorname{NaOMe}~\]
done
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C)
\[\operatorname{Al}{{\left( O\,Pr \right)}_{3}}\]
done
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D)
\[\operatorname{Sn}{{\left( OH \right)}_{2}}\]
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View Answer play_arrow
The number of possible alkynes with molecular formula \[{{\operatorname{C}}_{5}}{{H}_{8}}\]is:
A)
2
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B)
3
done
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C)
4
done
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D)
5
done
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Tautomerism is not exhibited by:
A)
done
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B)
done
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C)
done
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D)
done
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\[{{\operatorname{K}}_{p}}/{{K}_{c}}\]for the reaction: \[\operatorname{CO}\left( g \right)+{{O}_{2}}\left( g \right)\rightleftharpoons C{{O}_{2}}\left( g \right)\]is:
A)
1
done
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B)
RT
done
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C)
\[1\sqrt{RT}\]
done
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D)
\[{{\left( RT \right)}^{{}^{1}/{}_{2}}}\]
done
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View Answer play_arrow
The strongest base of the following species is:
A)
\[-N{{H}^{2-}}\]
done
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B)
\[{{\operatorname{OH}}^{-}}\]
done
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C)
\[{{\operatorname{O}}^{2-}}\]
done
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D)
\[{{\operatorname{S}}^{2-}}\]
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View Answer play_arrow
Oxidation state of \[\operatorname{Cl} in CaOC{{L}_{2}}\]is/are:
A)
0
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B)
+1
done
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C)
-1
done
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D)
+1, -1
done
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Nascent hydrogen consists of:
A)
Hydrogen atoms with excess energy
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B)
Hydrogen molecules with excess energy
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C)
Hydrogen ions in the excited state
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D)
Solvated protons
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View Answer play_arrow
C Brine solution on electrolysis will not give:
A)
\[\operatorname{NaOH}\]
done
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B)
\[{{\operatorname{Cl}}_{2}}\]
done
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C)
\[{{\operatorname{H}}_{2}}\]
done
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D)
\[{{\operatorname{O}}_{2}}\]
done
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View Answer play_arrow
Which of the following species has a linear shape:
A)
\[{{\operatorname{NO}}_{2}}^{+}\]
done
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B)
\[{{\operatorname{O}}_{3}}\]
done
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C)
\[{{\operatorname{NO}}_{2}}^{-}\]
done
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D)
\[{{\operatorname{SO}}_{2}}\]
done
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View Answer play_arrow
Which exhibits the weakest intermolecular forces?
A)
\[{{\operatorname{NH}}_{3}}\]
done
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B)
\[\operatorname{HCl}\]
done
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C)
\[\operatorname{He}\]
done
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D)
\[{{\operatorname{H}}_{2}}O\]
done
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View Answer play_arrow
In\[{{\left[ Ag{{\left( N \right)}_{2}} \right]}^{-}}\], the number of n bonds is:
A)
2
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B)
3
done
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C)
4
done
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D)
6
done
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View Answer play_arrow
The standard free energy change, \[\operatorname{AG}{}^\circ \]is related to equilibrium constant K as:
A)
\[\operatorname{Kp} =-RT\,\operatorname{I}\operatorname{n}\,AG{}^\circ \]
done
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B)
\[{{\operatorname{K}}_{p}}=\left( \frac{e}{RT} \right)\Delta {{G}^{o}}\]
done
clear
C)
\[{{\operatorname{K}}_{p}}=\frac{-\Delta {{G}^{o}}}{\operatorname{RT}}\]
done
clear
D)
\[{{\operatorname{K}}_{p}}=e-\Delta {{G}^{o}}\left( \operatorname{RT} \right)\]
done
clear
View Answer play_arrow
The correct order of bond angles/smallest \[\operatorname{first}/\,in {{H}_{2}}S, N{{H}_{3}} B{{F}_{3}} and Si{{H}_{4}}\]is:
A)
\[{{\operatorname{H}}_{2}}S < Si{{H}_{4}} < N{{H}_{3}} < B{{F}_{3}}\]
done
clear
B)
\[{{\operatorname{NH}}_{3}} < {{H}_{2}}S < SiH{{ }_{4}}< B{{F}_{3}}\]
done
clear
C)
\[{{\operatorname{H}}_{2}}S < N{{H}_{3}} < Si{{H}_{4}}< B{{F}_{3}}\]
done
clear
D)
\[{{\operatorname{H}}_{2}}S < N{{H}_{3}}< B{{F}_{3}}< Si{{H}_{4}}\]
done
clear
View Answer play_arrow
Which of the following is not electron deficient?
A)
\[{{\operatorname{NH}}_{3}}\]
done
clear
B)
\[{{\operatorname{BF}}_{3}}\]
done
clear
C)
\[{{\operatorname{AlC}}_{3}}\]
done
clear
D)
\[{{\operatorname{BH}}_{3}}\]
done
clear
View Answer play_arrow
The maximum number of molecules is present in:
A)
\[\operatorname{L}\,\,of\,\,{{H}_{2}}\,gas\,STP\]
done
clear
B)
\[5L\,\,of {{N}_{3}} gas STP\]
done
clear
C)
\[0.5g of {{H}_{2}} gas\]
done
clear
D)
\[10g of {{O}_{2}} gas\]
done
clear
View Answer play_arrow
The spectrum of He is expected to be similar to that of:
A)
H
done
clear
B)
Na
done
clear
C)
\[{{\operatorname{He}}^{+}}\]
done
clear
D)
\[{{\operatorname{Li}}^{+}}\]
done
clear
View Answer play_arrow
The bond length in LiF will be:
A)
Less than that of Naf
done
clear
B)
Equal to that of KF
done
clear
C)
More than that of KF
done
clear
D)
Equal to that of NaF
done
clear
View Answer play_arrow
Which of the following element outermost orbit's last electron has magnetic quantum number m=0?
A)
Na
done
clear
B)
O
done
clear
C)
Cl
done
clear
D)
N
done
clear
View Answer play_arrow
A metal crystallises, into two cubic phases, face centred (FCC) & body centred (BCC) whose unit cell lengths are \[3.5\overset{\operatorname{o}}{\mathop{A}}\, and 3.0\overset{\operatorname{o}}{\mathop{A}}\,\] respectively. Calculate ratio of their densities:
A)
1:26
done
clear
B)
1:20
done
clear
C)
1:10
done
clear
D)
1:15
done
clear
View Answer play_arrow
In NaCI, the chloride ions occupy the space in a fashion of:
A)
fee
done
clear
B)
bcc
done
clear
C)
Both
done
clear
D)
None
done
clear
View Answer play_arrow
If an aqueous solution of glucose is allowed to freeze, then crystals of which will be separated out first?
A)
Glucose
done
clear
B)
Water
done
clear
C)
Both
done
clear
D)
None
done
clear
View Answer play_arrow
The Van't Hoff factor for\[{{\operatorname{BaCl}}_{2}}\], at 0.01 M concentration is 1.98. The percentage dissociation of\[{{\operatorname{BaCl}}_{2}}\]at this concentration is:
A)
49
done
clear
B)
69
done
clear
C)
100
done
clear
D)
98
done
clear
View Answer play_arrow
What will be the emf of the given cell: \[\left| {{\operatorname{PH}}_{2}}\left( {{P}_{1}} \right){{H}^{+}}\left( aq. \right) \right.\left| {{H}_{2}}\left( {{P}_{2}} \right)Pt \right|\]
A)
\[\frac{RT}{F}In\frac{{{P}_{1}}}{{{P}_{2}}}\]
done
clear
B)
\[\frac{RT}{2F}In\frac{{{P}_{1}}}{{{P}_{2}}}\]
done
clear
C)
\[\frac{RT}{2F}In\frac{{{P}_{2}}}{{{P}_{1}}}\]
done
clear
D)
None
done
clear
View Answer play_arrow
DDT on exposure to water decomposes. Half life = 10 years. How much time will it take for its 90% decomposition?
A)
50 years
done
clear
B)
70 years
done
clear
C)
500 years
done
clear
D)
700 years
done
clear
View Answer play_arrow
Blood may be purified by:
A)
Dialysis
done
clear
B)
Electro-osmosis
done
clear
C)
Coagulation
done
clear
D)
Filtration
done
clear
View Answer play_arrow
The potential energy diagram for reaction \[\operatorname{R}\to P\]is given below: \[\Delta H{}^\circ \]of the reaction corresponds to the energy:
A)
a
done
clear
B)
b
done
clear
C)
c
done
clear
D)
a + b
done
clear
View Answer play_arrow
Which of the following is the most basic oxide?
A)
\[{{\operatorname{SeO}}_{2}}\]
done
clear
B)
\[{{\operatorname{Al}}_{2}}{{O}_{3}}\]
done
clear
C)
\[{{\operatorname{Sb}}_{2}}{{O}_{3}}\]
done
clear
D)
\[{{\operatorname{Bi}}_{2}}{{O}_{3}}\]
done
clear
View Answer play_arrow
During electrolytic refining of copper some metals present as impurity settles as 'anode?. mud'. There are:
A)
Sn and Ag
done
clear
B)
Pb and Zn
done
clear
C)
Ag and Au
done
clear
D)
Fe and Ni
done
clear
View Answer play_arrow
Which can do glass etching?
A)
\[{{\operatorname{HIO}}_{4}}\]
done
clear
B)
\[{{\operatorname{SiF}}_{4}}\]
done
clear
C)
HF
done
clear
D)
\[{{\operatorname{HNO}}_{3}}\]
done
clear
View Answer play_arrow
Which compound does not dissolve in hot dilute\[{{\operatorname{HNO}}_{3}}\]?
A)
\[\operatorname{HgS}\]
done
clear
B)
\[\operatorname{PbS}~\]
done
clear
C)
\[\operatorname{CuS}\]
done
clear
D)
\[\operatorname{CdS}\]
done
clear
View Answer play_arrow
For decolourization of 1 mole of\[{{\operatorname{KMnO}}_{4}}\], the moles of \[{{\operatorname{H}}_{2}}{{O}_{2}}\]required is:
A)
1/2
done
clear
B)
3/2
done
clear
C)
5/2
done
clear
D)
7/2
done
clear
View Answer play_arrow
The complex used as an anticancer agent is:
A)
\[\operatorname{mer}-\left[ CO{{\left( N{{H}_{3}} \right)}_{3}}C{{l}_{3}} \right]\]
done
clear
B)
\[\operatorname{cis} - \left[ PtC{{l}_{2}}{{\left( N{{H}_{3}} \right)}_{2}} \right]\]
done
clear
C)
\[\operatorname{cis}-{{K}_{2}}\left[ PtC{{l}_{2}}B{{r}_{2}} \right]\]
done
clear
D)
\[{{\operatorname{Na}}_{2}}COC{{l}_{4}}\]
done
clear
View Answer play_arrow
A (predominantly) is:
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
Phenol, when it first reacts with concentrated \[{{\operatorname{H}}_{2}}S{{O}_{4}}\]and then with concentrated nitric acid, gives:
A)
Nitrobenzene
done
clear
B)
2, 4, 6-trinitrobenzene
done
clear
C)
o-nitrophenol
done
clear
D)
p - nitrophenol
done
clear
View Answer play_arrow
Which of the following has the most acidic hydrogen?
A)
3-hexanone
done
clear
B)
2, 4-hexanedione
done
clear
C)
2, 5- hexanedione
done
clear
D)
2, 3-hexanedione
done
clear
View Answer play_arrow
A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives:
A)
Benzyl alcohol and sodium formate
done
clear
B)
Sodium benzoate and methyl alcohol
done
clear
C)
Sodium benzoate and sodium formate
done
clear
D)
Benzyl alcohol and methyl alcohol
done
clear
View Answer play_arrow
What is X?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
Which amino acid has phenolic OH group as its backbone?
A)
Glycine
done
clear
B)
Leucine
done
clear
C)
Serine
done
clear
D)
Tyrosine
done
clear
View Answer play_arrow
Which of the following is a chain growth polymer?
A)
Starch
done
clear
B)
Nucleic acid
done
clear
C)
Polystyrene
done
clear
D)
Proteins
done
clear
View Answer play_arrow
is
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
Nylon threads are made of:
A)
Polyethylene polymer
done
clear
B)
Polyvinyl polymer
done
clear
C)
Polyester polymer
done
clear
D)
Polyamide polymer
done
clear
View Answer play_arrow
Which tissue is required to be present in between stock and scion during grafting?
A)
Phloem
done
clear
B)
Meristem
done
clear
C)
Xylem
done
clear
D)
Both [a] and [c]
done
clear
View Answer play_arrow
The atmosphere is measured in terms of:
A)
Todsonunit
done
clear
B)
Dobsonunit
done
clear
C)
Mobson unit
done
clear
D)
None of the above
done
clear
View Answer play_arrow
How many species are present line in the sea?
A)
3,74,000
done
clear
B)
2,32,600
done
clear
C)
2,10,000
done
clear
D)
2,30,000
done
clear
View Answer play_arrow
Antheridium is present in:
A)
Marchantia
done
clear
B)
Chara
done
clear
C)
Sweet potato
done
clear
D)
Onion
done
clear
View Answer play_arrow
Fern Gametophyte is nutritionally:
A)
Chemoautotrophy
done
clear
B)
Parasite
done
clear
C)
Sporophyte
done
clear
D)
Photoautotroph
done
clear
View Answer play_arrow
Structure of a sporophyte consists of a foot, setae and:
A)
Vacuole
done
clear
B)
Cell membrane
done
clear
C)
Cell wall
done
clear
D)
Capsule
done
clear
View Answer play_arrow
Why concentration of solute is higher in external solution:
A)
Because of Hypertonicity
done
clear
B)
Because of Isotonicity
done
clear
C)
Because of Tonicity
done
clear
D)
Because of Hypotonicity
done
clear
View Answer play_arrow
Prokaryotic genetic system has:
A)
Either DNA or histones
done
clear
B)
Both DNA or histones
done
clear
C)
DNA but no histones
done
clear
D)
Neither DNA nor histones
done
clear
View Answer play_arrow
A vector should have which of the following properties:
i) MCS ii) Small size iii) Multiple ori iv).Low replication speed
A)
i, ii, iii
done
clear
B)
ii, iii, iv
done
clear
C)
i, ii, iv
done
clear
D)
i, ii, iv
done
clear
View Answer play_arrow
Biopiracy is related to which of the following:
A)
Traditional knowledge
done
clear
B)
Bioresources
done
clear
C)
Bimolecules
done
clear
D)
All of the above
done
clear
View Answer play_arrow
The chromosomes in eukaryotic organisms are best studied in:
A)
Non dividing cell
done
clear
B)
Stage of interphase
done
clear
C)
Metaphase
done
clear
D)
Late prophase
done
clear
View Answer play_arrow
Which one of the following is not an effect of tobacco?
A)
Blood vessels are dilated
done
clear
B)
Blood pressure increases
done
clear
C)
Nerve cells are stimulated
done
clear
D)
Heartbeat increases
done
clear
View Answer play_arrow
Onco genes is another name for:
A)
Promoter gene
done
clear
B)
Inducer gene
done
clear
C)
Structural gene
done
clear
D)
Cancer causing gene
done
clear
View Answer play_arrow
Which of the following bacteria is found in symbiotic association with legumes?
A)
Azotabacter
done
clear
B)
Rhizobium
done
clear
C)
Azospirillum
done
clear
D)
Bacillus
done
clear
View Answer play_arrow
In gastrulation, which is/are formed?
A)
Endoderm
done
clear
B)
Mesoderm
done
clear
C)
Ectoderm and endoderm
done
clear
D)
Ectoderm, mesoderm and endoderm
done
clear
View Answer play_arrow
Which of the following is included in biopesticide?
A)
Viruses and bacteria
done
clear
B)
Viruses, bacteria and fungi
done
clear
C)
Viruses, bacteria, fungi/protozoa and mites
done
clear
D)
Viruses, bacteria, fungi and protozoa
done
clear
View Answer play_arrow
Surf ace appendage of bacteria meant for cell-cell attachment during conjugation is:
A)
Pili
done
clear
B)
Flagella
done
clear
C)
Spinal
done
clear
D)
Cilia
done
clear
View Answer play_arrow
A gene showing codominance:
A)
Has alleles tightly linked on the same chromosome
done
clear
B)
Has one allele dominant to other
done
clear
C)
Has both alleles independently expressed in the heterozygote
done
clear
D)
Has alleles expressed at the sometime in development
done
clear
View Answer play_arrow
RNA molecules that acts as enzymes are called:
A)
Polymerase
done
clear
B)
Ribozymes
done
clear
C)
Transcriptase
done
clear
D)
Both [a] and [b]
done
clear
View Answer play_arrow
Which of the following also acts as catalyst in bacterial cell:
A)
hn RNA
done
clear
B)
5 sr RNA
done
clear
C)
Sn RNA
done
clear
D)
23 Sr RNA
done
clear
View Answer play_arrow
Alfatoxin is produced by:
A)
Bacteria
done
clear
B)
Virus
done
clear
C)
Fungi
done
clear
D)
Nematode
done
clear
View Answer play_arrow
The perianth is the term used when:
A)
Androecium and gynoecium are similar
done
clear
B)
Calyx and corolla are similar
done
clear
C)
Androcium and calyx are similar
done
clear
D)
Gynoecium and corolla are similar
done
clear
View Answer play_arrow
HS. Placentation in tomato and lemon is:
A)
Axile
done
clear
B)
Marginal
done
clear
C)
Parietal
done
clear
D)
Free central
done
clear
View Answer play_arrow
Introduction of recombinant DNA into bacterial cell by using current is called:
A)
Transformation
done
clear
B)
Electroporation
done
clear
C)
Recombination
done
clear
D)
Transduction
done
clear
View Answer play_arrow
Sympatric speciation is the formation of species:
A)
In grographically isolated areas
done
clear
B)
Within a single population without geo-graphical isolation
done
clear
C)
Due to artificial selection
done
clear
D)
Due to polymorphism
done
clear
View Answer play_arrow
Which of the following is used in biowar?
A)
A pathogen
done
clear
B)
Toxin from a pathogen
done
clear
C)
A delivery system for the bioweapon agent
done
clear
D)
All of the above
done
clear
View Answer play_arrow
A person with blood group A possesses:
A)
Antigen A and antibody B
done
clear
B)
Antigen B and antibody A
done
clear
C)
Antigen A and antibody B
done
clear
D)
No antigen and no antibody
done
clear
View Answer play_arrow
In which one pair both the plants can be vegetatively propagated by leaf pieces?
A)
Bryophyllum and Kalanchoe
done
clear
B)
Chrysanthemum and Agave
done
clear
C)
Agave and kalanchoe
done
clear
D)
Asparagus and Bryophyllum
done
clear
View Answer play_arrow
The concept of biological species defines species as a group of:
A)
Individuals occupying a specific area
done
clear
B)
Interbreeding individuals
done
clear
C)
Individuals producing fertile hybrid
done
clear
D)
Reproductively isolated individuals
done
clear
View Answer play_arrow
The function of the operator gene is:
A)
Structural gene
done
clear
B)
Promoter gene
done
clear
C)
Regulator gene
done
clear
D)
Induces gene
done
clear
View Answer play_arrow
Which of the following birth control measures can be considered as the safest?
A)
The rhythm method
done
clear
B)
The use of physical barriers
done
clear
C)
Termination of unwanted pregnancy
done
clear
D)
Sterlisation techniques.
done
clear
View Answer play_arrow
Industrial melanism is an example of:
A)
Protective resemblance with the surrounding
done
clear
B)
Drug resistance
done
clear
C)
Defensive adaptation of skin against UV radiations
done
clear
D)
Darkening of skin due to industries
done
clear
View Answer play_arrow
Hydroponics is:
A)
Growing of aquatic plants
done
clear
B)
Growing off floating aquatic plants
done
clear
C)
Soilless cultivation of plants
done
clear
D)
Growing of plants inside water,
done
clear
View Answer play_arrow
Basement membrane is made up of:
A)
No cell product of epithelial cell
done
clear
B)
Epidermal cells only
done
clear
C)
Endodermal cell
done
clear
D)
Both b and c
done
clear
View Answer play_arrow
The fruit of gramineae is:
A)
Caruncle
done
clear
B)
Caryopsis
done
clear
C)
Achene
done
clear
D)
Nut
done
clear
View Answer play_arrow
Cork cambium and vascular cambium are:
A)
Parts of secondary xylem and phloem<f
done
clear
B)
Parts of pericycly
done
clear
C)
Lateral meristem
done
clear
D)
Apical meristem
done
clear
View Answer play_arrow
Bordered pits are found in:
A)
Sieve cells
done
clear
B)
Vessel wall
done
clear
C)
Companion cells
done
clear
D)
Sieve tube wall
done
clear
View Answer play_arrow
Which one of the following is wrongly matched:
A)
Cassia - Imbricate aestivation
done
clear
B)
Root pressure - Guttation
done
clear
C)
Puccinia - Smut
done
clear
D)
Root - Exarch protoxylem
done
clear
View Answer play_arrow
Which series ends with the cohort umbellales in Bentham and Hooker's system of classification.
A)
Heteromerae
done
clear
B)
Disciflorae
done
clear
C)
Thalamiflorae
done
clear
D)
Calyciflorae
done
clear
View Answer play_arrow
H the linked genes are present not very far off on the chromosome, the recombinant frequency would be:
A)
50%
done
clear
B)
Less than 50%
done
clear
C)
More than 50%
done
clear
D)
75%
done
clear
View Answer play_arrow
The tumour inducing capacity of Agrobacterium tumefaciens is located in large extra chromosomal plasmid called:
A)
Tiplasmid
done
clear
B)
Lamda phage
done
clear
C)
pBR322
done
clear
D)
Tiplasmid
done
clear
View Answer play_arrow
The recessive genes located on X chromosome in humans are always:
A)
Sub-lethal
done
clear
B)
Expressed in males
done
clear
C)
Expressed in females
done
clear
D)
Lethal
done
clear
View Answer play_arrow
Self - incompability due to the genotype of the pollen grain itself termed as:
A)
Sporphytic incompatibility
done
clear
B)
Gametophytic in compatibility
done
clear
C)
Stigmatic incompactibility
done
clear
D)
Apomixis
done
clear
View Answer play_arrow
Induce acetic acid belongs to the group of hormones called:
A)
Auxins
done
clear
B)
Gibberellins
done
clear
C)
Cytokinins
done
clear
D)
Abscisic acid
done
clear
View Answer play_arrow
Children suffering from SCID cannot make the following enzyme:
A)
Adenosine deaminase
done
clear
B)
Adenosine triphosphate
done
clear
C)
Adenosine diphosphate
done
clear
D)
Hirudin
done
clear
View Answer play_arrow
The R - strain of a bacteria Diplococcus pnemoniae:
A)
Are not virulent
done
clear
B)
Form rough colonies
done
clear
C)
Are capsulated
done
clear
D)
Are non capsulated
done
clear
View Answer play_arrow
Restriction endonucleases are most widely used in recombinant DNA technology. They are obtained from:
A)
Bacteriophages
done
clear
B)
Bacterial cells
done
clear
C)
Plasmids
done
clear
D)
All prokaryotic cells
done
clear
View Answer play_arrow
Global radiation:
A)
Direct radiation - Diffuse radiation
done
clear
B)
Direct radiation + Diffuse radiation
done
clear
C)
Direct radiation / Diffuse radiation
done
clear
D)
Diffuse radiation /Direct radiation
done
clear
View Answer play_arrow
A prokaryotic autotrophic nitrogen fixing symbiont found in?
A)
Pisum
done
clear
B)
Ainus
done
clear
C)
Cycas
done
clear
D)
Cicer
done
clear
View Answer play_arrow
The process of embryo formation without fertilization is known as:
A)
A pospory
done
clear
B)
A Pogomy
done
clear
C)
Parthenocarpy
done
clear
D)
Polyembryony
done
clear
View Answer play_arrow
An egg - apparatus contains:
A)
An egg + two antipodals
done
clear
B)
An egg + Secondary nucleus
done
clear
C)
Antipodal cell + synergid
done
clear
D)
An egg + Two synergids
done
clear
View Answer play_arrow
A gas rquired for germination of pea seed is:
A)
Nitrogen
done
clear
B)
Oxygen
done
clear
C)
Hydrogen
done
clear
D)
Water vapours
done
clear
View Answer play_arrow
A triploblastic unsegmented animal with complete alimentary canal could be a:
A)
Roundworm
done
clear
B)
Planaria
done
clear
C)
Liverfluke
done
clear
D)
Hydra
done
clear
View Answer play_arrow
Which of the following is found in sponges only:
A)
Mesoglea
done
clear
B)
Nerve cells
done
clear
C)
One exit
done
clear
D)
Numerous inlets
done
clear
View Answer play_arrow
The body cavity formed by splitting of mesoderm is called:
A)
Pseudocoelom
done
clear
B)
Coelom
done
clear
C)
Haemocoel
done
clear
D)
Blastocoel
done
clear
View Answer play_arrow
Pneumatophores are special features of plants growing in:
A)
Water
done
clear
B)
Mangrove forests
done
clear
C)
Dry and heat conditions
done
clear
D)
Oligotrophic soils
done
clear
View Answer play_arrow
Which of the following is the most common tree species in Indian tropical rainforests?
A)
Dipterocarpus
done
clear
B)
Shorea robusta
done
clear
C)
Acacia
done
clear
D)
Overcus
done
clear
View Answer play_arrow
Biodiversity varies with change in latitude and altidude. It:
A)
Decrease from high to low latitudes
done
clear
B)
Decreases from low to high altitudes
done
clear
C)
Decreases from high to low altitude
done
clear
D)
Decrease from low to high altitude
done
clear
View Answer play_arrow
The longwavy, unbranched fibres present in bundles in connective tissue?
A)
Collagen fibre
done
clear
B)
Elastic fibre
done
clear
C)
Reticulate fibre
done
clear
D)
Yellow fibre
done
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The cutting down of trees and setting them on fire and raising crops on the resulting ash is called:
A)
Pyrolysis
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B)
Jhum cultivation
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C)
Taungyasystem
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D)
Shift cultivation
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What is correctly mathced?
A)
Apiculture - Honeybee
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B)
Pisiculture - Silk moth
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C)
Sericulture - Fish
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D)
Aquaculture - Mosquito
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Amphetamines have the following effect on the body:
A)
Cause drowsiness
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B)
Bring hallucinations
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C)
Stimulate the body
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D)
Depress the body
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The earth originated approximately:
A)
\[3.6\times 1{{0}^{6}} years ago\]
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B)
\[4.6\times 1{{0}^{6}} years ago\]
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C)
\[4.6\times 1{{0}^{9}} years ago\]
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D)
\[3.6\times 1{{0}^{9}} years ago\]
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Ectomycorrhiza is an association of:
A)
Bacteria and plant roots
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B)
Cyanobacteria and plant roots
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C)
Fungi and plant roots
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D)
Bacteria and fungi
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Haemolytic disease of the new born (HDN) occurs when:
A)
\[{{\operatorname{Rh}}^{-}} mother bears R{{r}^{+}} foetus\]
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B)
\[{{\operatorname{Rh}}^{+}} mother bears R{{h}^{-}} foetus\]
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C)
\[{{\operatorname{O}}^{+}} mother bears {{A}^{+}} foetus\]
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D)
\[{{O}^{+}} mother bears {{A}^{-}} foetus\]
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In a counter flow system in the gills of fish the direction of flow in water is:
A)
Parallel to the flow of blood
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B)
Opposite to the flow of blood
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C)
At right angle to the flow of blood
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D)
None of these
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Krebs cycle take place in:
A)
Mitochondria
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B)
Cytoplasm
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C)
Grana
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D)
Endoplasmic reticulum
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Which of the following hormones is released by duodenum and acts on gall bladder?
A)
Gastrin
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B)
Secretin
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C)
Cholecystokinin
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D)
GIP
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Trypsin acts on:
A)
Proteins in a acidic medium
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B)
Proteins in alkaline medium
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C)
Depepticles in a acidic medium
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D)
Dipeptides in alkaline medium
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What had happened when heat killed R cells along with the live R cells were injected into mice?
A)
Mice survived and showed lines cells
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B)
Mice died and showed live cells
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C)
Mice survived and showed live R cells
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D)
Mice died and showed live R cells
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\[{{\operatorname{F}}_{1}}\]particles are present in the mitochondria:
A)
In matrix
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B)
On outer membrane
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C)
On inner membrane
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D)
In intercristae space
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Phylogeny represent the:
A)
Embryological history of animals
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B)
Comparative anatomy of animals
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C)
Evolutionary history of animal
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D)
Fossilisation of animal
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The enzyme that polymerises deoyribonu" cleotides in \[5'\to 3'\] direction only is called:
A)
Helicase
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B)
Primase
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C)
DNA polymerase
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D)
DNA ligase
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Which one of the following is a psychedelic drug?
A)
Opium
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B)
LSD
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C)
Cocaine
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D)
Morphine
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In vitro fertilization or test tube babies technique involves:
A)
Fertilisation outside the female body
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B)
Development of foetus in the test tube
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C)
Both the above
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D)
None of the above
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The vascular bundles of a dicot stem are:
A)
Closed, collateral and exarch
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B)
Open, collateral and exarch
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C)
Closed, collateral and endarch
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D)
Open, collateral and endarch
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Cilia and flagella both have:
A)
9 + 2 arrangement
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B)
9 + 0 arrangement
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C)
Symmetrical berts
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D)
100pm
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Somaclonal variation on can be obtained by:
A)
Application of colchicine
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B)
Hybridisation
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C)
Irradiation with gamma rays
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D)
Tissue culture
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The enzyme for electron transport chain are present:
A)
On outer membrane
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B)
On inner membrane
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C)
In outer chamber
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D)
In inner chamber
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Each pollen tube has:
A)
One generative nuclues and one tube nucleus
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B)
One generative nucleus and two tube nuclei
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C)
Two generative nuclei and one tube nucleus
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D)
Two generative nuclei one two tube nuclei
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In the human female, mensturation can be deffered by administrations of:
A)
Combination of estrogen and progesterone
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B)
FSH only
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C)
LH only
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D)
Combination of FSH and LH
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Unisexualituy of flowers prevents:
A)
Autogamy and geitonogamy
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B)
Both geitonogamy and Xenogamy
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C)
Autogamy but not geitonogamy
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D)
Geitonogamy but not xenogamy
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The use of sunflower oil is recommended by the doctors because it is:
A)
Rich in saturated fatty acids
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B)
Rich in unsaturated fatty acids
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C)
Good for reducing weight
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D)
Rich source of energy
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Carbon monoxide poisoning is due to the formation of:
A)
Carboxyhaemoglobin
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B)
Carbaminohaemoglobin
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C)
Carbonic acid
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D)
Carbonic and hydrase
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Which of the following does not have a medusa stage:
A)
Hydra
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B)
Jellyfish
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C)
Obilia
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D)
Corals
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Which of the following level of organisation is found in coelenterate?
A)
Cellular
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B)
Tissue
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C)
Organ
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D)
Organ system
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Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?
A)
Allantois
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B)
Yolk sac
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C)
Amnion
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D)
Chorion
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A normal women whose father was colour blind marries a normal man. Her sons would be:
A)
75% colour blind
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B)
50% colour blind
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C)
All normal
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D)
All colour blind
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If DDT is sprayed in a lake, its highest concentration will be found in:
A)
Phytoplankton
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B)
Zooplanktons
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C)
Fish eating birds
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D)
Fishes
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What is false for population attributes:
A)
Group of organism living in well-defined geographical area
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B)
It has birth rate and death rate
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C)
It has sex ratio
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D)
It has sex
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