A)
\[ab\]sq. units
done
clear
B)
\[\frac{{{a}^{2}}+{{b}^{2}}}{2}sq.units\]
done
clear
C)
\[\frac{{{\left( a+b \right)}^{2}}}{2}\operatorname{sq}.units\]
done
clear
D)
\[\frac{{{a}^{2}}+ab+{{b}^{2}}}{3}sq.units\]
done
clear
View Answer play_arrow
A)
\[\left( 0,2\pi \right)\]
done
clear
B)
\[\left( -\pi ,0 \right)\]
done
clear
C)
\[\left( -\frac{\pi }{2},\frac{\pi }{2} \right)\]
done
clear
D)
\[\left( 0,\pi \right)\]
done
clear
View Answer play_arrow
A)
\[\left( -1,1 \right)\]
done
clear
B)
\[\left( -\frac{3}{2},0 \right)\cup \left( 0,\frac{3}{2} \right)\]
done
clear
C)
\[\left( 0,\infty \right)\]
done
clear
D)
\[\left( -\frac{3}{2},-\frac{1}{2} \right)\cup \left( \frac{1}{2},\frac{3}{2} \right)\]
done
clear
View Answer play_arrow
A)
\[\left( -\infty ,\infty \right)\]
done
clear
B)
\[\left( 0,\infty \right)\]
done
clear
C)
\[\left( -\infty ,0 \right)\cup \left( 0,\infty \right)\]
done
clear
D)
none of these
done
clear
View Answer play_arrow
A)
\[3{{R}_{1}}=2{{R}_{2}}\]
done
clear
B)
\[2{{R}_{1}}=3{{R}_{2}}\]
done
clear
C)
\[{{R}_{1}}={{R}_{2}}\]
done
clear
D)
\[{{R}_{1}}=2{{R}_{2}}\]
done
clear
View Answer play_arrow
A)
\[f\]is even and non-periodic
done
clear
B)
\[f\]is odd and periodic
done
clear
C)
\[f\]is odd and non-periodic
done
clear
D)
\[f\]is even and periodic
done
clear
View Answer play_arrow
A)
Is more than 6
done
clear
B)
Is more than 3but less than 6
done
clear
C)
Is less than 12
done
clear
D)
Lies between 6 and 1
done
clear
View Answer play_arrow
A)
\[p\]
done
clear
B)
\[p-1\]
done
clear
C)
\[2p+1\]
done
clear
D)
\[2p-1\]
done
clear
View Answer play_arrow
A)
\[f\left( x \right)\]
done
clear
B)
0
done
clear
C)
\[f\left( x \right)f'\left( nx \right)\]
done
clear
D)
none of these
done
clear
View Answer play_arrow
A)
Zero
done
clear
B)
one
done
clear
C)
Three
done
clear
D)
infinite
done
clear
View Answer play_arrow
A)
\[\frac{3}{\pi }+\frac{2}{{{\pi }^{2}}}\]
done
clear
B)
\[\frac{3}{{{\pi }^{2}}}+\frac{1}{\pi }\]
done
clear
C)
\[\frac{3}{{{\pi }^{{}}}}+\frac{1}{{{\pi }^{2}}}\]
done
clear
D)
\[\frac{3}{{{\pi }^{{}}}}-\frac{1}{{{\pi }^{2}}}\]
done
clear
View Answer play_arrow
A)
\[\frac{1}{2}\]
done
clear
B)
\[\frac{2}{3}\]
done
clear
C)
\[\frac{3}{4}\]
done
clear
D)
\[\frac{\pi }{2}\]
done
clear
View Answer play_arrow
A)
\[\frac{3}{16}\left( {{x}^{2}}-6x+16 \right)\]
done
clear
B)
\[\frac{3}{25}\left( {{x}^{2}}-6x+9 \right)\]
done
clear
C)
\[\frac{3}{25}\left( {{x}^{2}}-6x+16 \right)\]
done
clear
D)
\[\frac{3}{16}\left( {{x}^{2}}-6x+9 \right)\]
done
clear
View Answer play_arrow
If the product of \[n\] matrices
\[\left[ \begin{matrix}
1 & 1 \\
0 & 1 \\
\end{matrix} \right]\,\,\left[ \begin{matrix}
1 & 2 \\
0 & 1 \\
\end{matrix} \right]\,\,\left[ \begin{matrix}
1 & 3 \\
0 & 1 \\
\end{matrix} \right]\,......\left[ \begin{matrix}
1 & n \\
0 & 1 \\
\end{matrix} \right]\] is equal to the matrix \[\left[ \begin{align} & 1\,\,378 \\ & 0\,\,\,\,\,1 \\ \end{align} \right]\], then the value of \[n\]is equal to
A)
26
done
clear
B)
27
done
clear
C)
337
done
clear
D)
378
done
clear
View Answer play_arrow
A)
2
done
clear
B)
3
done
clear
C)
4
done
clear
D)
5
done
clear
View Answer play_arrow
A)
\[\frac{11}{3}\]
done
clear
B)
\[-\frac{11}{3}\]
done
clear
C)
\[\frac{13}{2}\]
done
clear
D)
\[-\frac{13}{2}\]
done
clear
View Answer play_arrow
A)
\[\frac{\left( {{a}^{2}}-{{b}^{2}} \right)ab}{{{a}^{2}}+{{b}^{2}}}\]
done
clear
B)
\[\frac{\left( {{a}^{2}}+{{b}^{2}} \right)ab}{{{a}^{2}}-{{b}^{2}}}\]
done
clear
C)
\[ab\]
done
clear
D)
\[\frac{{{a}^{2}}{{b}^{2}}}{{{a}^{2}}+{{b}^{2}}}\]
done
clear
View Answer play_arrow
A)
\[\frac{5}{7}\]
done
clear
B)
\[\frac{2}{7}\]
done
clear
C)
\[\frac{3}{7}\]
done
clear
D)
\[\frac{4}{7}\]
done
clear
View Answer play_arrow
A)
0
done
clear
B)
infinite
done
clear
C)
1
done
clear
D)
2
done
clear
View Answer play_arrow
A)
1
done
clear
B)
2
done
clear
C)
4
done
clear
D)
infinity
done
clear
View Answer play_arrow
An object travels along a path shown with changing velocity as indicated by vectors A and B. Which vector best represents the net acceleration of the object from time \[{{t}_{A}}\] to \[{{t}_{B}}\]?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
An air track glider of mass M is built, consisting of two smaller connected gliders with a small explosive charge located between them. The glider is traveling along a frictionless rail at 2 m/s to the right when the charge is detonated, causing the smaller glider with mass \[\frac{1}{4}M,\] At, to move off to the right at 5 m/s. What is the final velocity of the second small glider?
A)
4 m/s to the left
done
clear
B)
2 m/s to the left
done
clear
C)
1 m/s to the left
done
clear
D)
1 m/s to the right
done
clear
View Answer play_arrow
A billiard ball hits the side of a pool table at an angle \[\theta \] as shown in the top view above, and bounces away at the same angle, and with the same speed. Which vector indicates the direction of the net change in momentum of the billiard ball?
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
A large cannon is mounted on a cart with frictionless wheels that is initially at rest on a horizontal surface. The cannon fires a large cannonball to the right with a speed \[{{v}_{cannonball}},\] which is then caught by a trap firmly attached to the cart. What is the filial speed v of the cannon-cart cannonball system?
A)
\[v>{{v}_{cannonball}},\] to the left
done
clear
B)
\[v>{{v}_{cannonball}},\] to the right
done
clear
C)
0
done
clear
D)
\[v<{{v}_{cannonball}},\] to the left
done
clear
View Answer play_arrow
The instantaneous velocity and net acceleration for an object moving in a circular path are shown. At this moment in time, the object is :
A)
Speeding up in a clockwise circle
done
clear
B)
Slowing down in a clockwise circle
done
clear
C)
Speeding up in a counterclockwise circle
done
clear
D)
Slowing down in a counterclockwise circle
done
clear
View Answer play_arrow
The potential energy function U(x) is associated with a conservative force F and described by the graph given here. If a particle being acted upon by this force has a kinetic energy of 1.0 J at position\[{{x}_{0}},\] what is the particle's kinetic energy at position \[{{x}_{4}}?\]
A)
6.0 J
done
clear
B)
7.0 J
done
clear
C)
2.0 J
done
clear
D)
\[-\,2.0\text{ }J\]
done
clear
View Answer play_arrow
A)
The star's moment of inertia I has decreased, and its angular momentum L has increased
done
clear
B)
The star's moment of inertia I has decreased, and its angular velocity \[\omega \] has decreased
done
clear
C)
The star's moment of inertia I remains constant, and its angular momentum L has increased
done
clear
D)
The star's angular momentum L remains constant, and its rotational kinetic energy has increased
done
clear
View Answer play_arrow
A)
\[{{10}^{-\,19}}\text{/}{{\mu }_{0}}\]
done
clear
B)
\[{{10}^{-\,19}}{{\mu }_{0}}\]
done
clear
C)
\[2\times {{10}^{-\,19}}{{\mu }_{0}}\]
done
clear
D)
\[2\times {{10}^{-\,19}}\text{/}{{\mu }_{0}}\]
done
clear
View Answer play_arrow
A)
Greater than at Q
done
clear
B)
Same as at Q
done
clear
C)
less than at Q
done
clear
D)
Greater or less than at Q depending upon the strength of the current
done
clear
View Answer play_arrow
A)
\[{{B}_{0}}\,\,i\,\,\ell \]
done
clear
B)
\[\sqrt{2}\,\,{{B}_{0}}\,\,i\,\,\ell \]
done
clear
C)
\[2\,\,{{B}_{0}}\,\,i\,\,\ell \]
done
clear
D)
\[{{B}_{0}}\,\,i\,\,\ell \,\,/\sqrt{2}\]
done
clear
View Answer play_arrow
A)
2 m
done
clear
B)
3 m
done
clear
C)
4 m
done
clear
D)
7 m
done
clear
View Answer play_arrow
A)
\[{{10}^{4}}\,\,W\]
done
clear
B)
10 W
done
clear
C)
2.5 W
done
clear
D)
5.0 W
done
clear
View Answer play_arrow
An asteroid traveling through space collides with one end of a long, cylindrical satellite as shown and sticks to the satellite. Which of the following is true of the isolated asteroid-satellite system in this collision?
A)
Kinetic energy K is conserved
done
clear
B)
Total Energy E is conserved, but angular momentum L is not conserved
done
clear
C)
Angular momentum L is conserved, but linear momentum P is not conserved
done
clear
D)
Angular momentum L is conserved, and total energy E is conserved
done
clear
View Answer play_arrow
Two ice skaters, of mass 30 kg and 80 kg, are skating across the surface of a frozen lake on a collision course, with respective velocities of 2.0 m/s in a general north direction, and 1.0 m/s generally west, as shown above. After they collide, the pair of skaters move off in a direction north of west with a momentum of approximately 100 kg m/s. How much kinetic energy was lost in the collision?
A)
0 J
done
clear
B)
110 J
done
clear
C)
55 J
done
clear
D)
70 J
done
clear
View Answer play_arrow
A)
100%
done
clear
B)
0%
done
clear
C)
60%
done
clear
D)
50%
done
clear
View Answer play_arrow
A)
\[f\]
done
clear
B)
\[2f\]
done
clear
C)
\[f/2~\]
done
clear
D)
\[f/4\]
done
clear
View Answer play_arrow
A wheel of radius R is rolling along a horizontal surface with a speed \[u.\] A pebble trapped on the wheel gets separated from the highest point of the wheel arrives at position P (figure). The horizontal range PQ of the pebble is:
A)
\[u\,\sqrt{R/g}\]
done
clear
B)
\[2u\,\sqrt{R/g}\]
done
clear
C)
\[4u\,\sqrt{R/g})\]
done
clear
D)
\[{{u}^{2}}\,\sqrt{R/g}\]
done
clear
View Answer play_arrow
A)
4 m
done
clear
B)
6 m
done
clear
C)
6.8 m
done
clear
D)
8 m
done
clear
View Answer play_arrow
A)
\[{{\omega }_{1}}-{{\omega }_{2}}\]
done
clear
B)
\[\sqrt{\omega _{1}^{2}+\omega _{2}^{2}}\]
done
clear
C)
\[\sqrt{\omega _{1}^{2}-\omega _{2}^{2}}\]
done
clear
D)
\[{{\omega }_{1}}+{{\omega }_{2}}\]
done
clear
View Answer play_arrow
A)
8
done
clear
B)
2
done
clear
C)
4
done
clear
D)
6
done
clear
View Answer play_arrow
A)
\[201.28{{\Omega }^{-\,1}}c{{m}^{-\,2}}\]
done
clear
B)
\[390.71{{\Omega }^{-\,1}}c{{m}^{-\,2}}\]
done
clear
C)
\[698.28\,{{\Omega }^{-1}}c{{m}^{-2}}\]
done
clear
D)
\[540.48{{\Omega }^{-1}}c{{m}^{-2}}\]
done
clear
View Answer play_arrow
A)
\[1.27\times {{10}^{23}}\]
done
clear
B)
\[3.63\times {{10}^{40}}\]
done
clear
C)
\[8.279\times {{10}^{45}}\]
done
clear
D)
\[0.03\times {{10}^{23}}\]
done
clear
View Answer play_arrow
A)
\[Z{{n}^{2+}},C{{u}^{2+}},T{{i}^{3+}},C{{o}^{2+}}\]
done
clear
B)
\[Z{{n}^{2+}},C{{r}^{+}},T{{i}^{4+}},{{V}^{2+}}\]
done
clear
C)
\[C{{r}^{3+}},M{{n}^{2+}},Z{{n}^{2+}},T{{i}^{4+}}\]
done
clear
D)
\[M{{n}^{7+}},C{{r}^{6+}},C{{u}^{+}},{{V}^{2+}}\]
done
clear
View Answer play_arrow
A)
\[0.01M\,NaCl\]
done
clear
B)
\[0.005M\,{{C}_{2}}{{H}_{5}}OH\]
done
clear
C)
\[0.0005M\,Mg{{I}_{2}}\]
done
clear
D)
\[0.005\,M\,MgS{{O}_{4}}\]
done
clear
View Answer play_arrow
A)
\[6\alpha \,\text{and}\,\text{4}\beta \]
done
clear
B)
\[2\alpha \,\text{and}\,\text{4}\beta \]
done
clear
C)
\[6\alpha \,\text{and}\,2\beta \]
done
clear
D)
\[4\alpha \,\text{and}\,6\beta \]
done
clear
View Answer play_arrow
A)
\[n=4,l=1,m=+\,2,s=+\frac{1}{2}\]
done
clear
B)
\[n=4,l=0,m=0,s=+\frac{1}{2}\]
done
clear
C)
\[n=3,l=2,m=+\,2,s=+\frac{1}{2}\]
done
clear
D)
\[n=4,l=2,m=-\,1,s=+\frac{1}{2}\]
done
clear
View Answer play_arrow
A)
chloroprene
done
clear
B)
isoprene
done
clear
C)
neoprene
done
clear
D)
glyptal
done
clear
View Answer play_arrow
A)
\[PO_{4}^{3-}\]
done
clear
B)
\[NO_{2}^{-}\]
done
clear
C)
\[NO_{3}^{-}\]
done
clear
D)
\[CO_{3}^{2-}\]
done
clear
View Answer play_arrow
A)
\[3.011\times {{10}^{23}}\]
done
clear
B)
\[6.022\times {{10}^{23}}\]
done
clear
C)
\[9.033\times {{10}^{23}}\]
done
clear
D)
\[1.802\times {{10}^{24}}\]
done
clear
View Answer play_arrow
A)
63.3 min
done
clear
B)
53.3 min
done
clear
C)
43.3 min
done
clear
D)
30 min
done
clear
View Answer play_arrow
A)
\[NO\]
done
clear
B)
\[{{N}_{2}}\]
done
clear
C)
\[N{{O}_{2}}\]
done
clear
D)
\[{{N}_{2}}O\]
done
clear
View Answer play_arrow
The major structure of the following reaction,
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
A)
Aspartic acid
done
clear
B)
Arginine
done
clear
C)
Lysine
done
clear
D)
Histidine
done
clear
View Answer play_arrow
A)
\[1.84\times {{10}^{-7}}\]
done
clear
B)
\[2.36\times {{10}^{-\,9}}\]
done
clear
C)
\[1.5\times {{10}^{-\,9}}\]
done
clear
D)
\[3.62\times {{10}^{-\,7}}\]
done
clear
View Answer play_arrow
The correct order of increasing basicity of given compound is
A)
\[II<III<I\]
done
clear
B)
\[I<II<III\]
done
clear
C)
\[II<I<III\]
done
clear
D)
\[III<II<I\]
done
clear
View Answer play_arrow
A)
benzyl alcohol and sodium format
done
clear
B)
sodium benzoate and methyl alcohol
done
clear
C)
sodium benzoate and sodium format
done
clear
D)
benzyl alcohol and methyl alcohol
done
clear
View Answer play_arrow
A)
\[-\,372.69\]
done
clear
B)
\[-\,387.70\]
done
clear
C)
\[-\,370.89\]
done
clear
D)
\[-\,372.16\]
done
clear
View Answer play_arrow
A)
\[2\times {{10}^{18}}{{s}^{-\,1}}\]
done
clear
B)
\[6\times {{10}^{14}}{{s}^{-\,1}}\]
done
clear
C)
\[3.6\times {{10}^{30}}{{s}^{-\,1}}\]
done
clear
D)
infinity
done
clear
View Answer play_arrow
A)
resonance in be] but not in \[BF_{4}^{-}\]
done
clear
B)
\[p\pi \text{-}p\pi \] back bonding in \[BF_{4}^{-}\]but not in \[B{{F}_{3}}\]
done
clear
C)
\[p\pi \text{-}p\pi \] back bonding in \[B{{F}_{3}}\] but not in \[BF_{4}^{-}\]
done
clear
D)
\[p\pi \text{-}p\pi \] back bonding in \[B{{F}_{3}}\] but not in \[BF_{4}^{-}\]
done
clear
View Answer play_arrow
A)
Infectious and increased secretion of IgE
done
clear
B)
Non-infectious and increased secretions of IgE
done
clear
C)
Infectious and increased secretion of IgG
done
clear
D)
Non-infectious and increased secretion of IgM
done
clear
View Answer play_arrow
A)
Jaundice
done
clear
B)
Methemoglobinemia
done
clear
C)
Mumps
done
clear
D)
Septicemia
done
clear
View Answer play_arrow
A)
10% Red.
done
clear
B)
The Red flower & White flower ratio in 3 : 1
done
clear
C)
The pink flower & White flower ratio in 1 : 1
done
clear
D)
The pink, Red and White flower ratio in 1 : 2 : 1
done
clear
View Answer play_arrow
The above diagrams of clover leaf life structure of tRNA represent its
A)
Primary structure
done
clear
B)
Secondary structure
done
clear
C)
Tertiary structure
done
clear
D)
Quaternary structure
done
clear
View Answer play_arrow
A)
\[0.1-2kb\]
done
clear
B)
\[0.1-20kb\]
done
clear
C)
\[0.01-20kb\]
done
clear
D)
\[0.1-200kb\]
done
clear
View Answer play_arrow
A)
Water
done
clear
B)
Glucose
done
clear
C)
Urea and uric acid
done
clear
D)
Salts
done
clear
View Answer play_arrow
A)
Avena curvature test
done
clear
B)
Green leaf test
done
clear
C)
Dwarf maize test
done
clear
D)
Cell division test
done
clear
View Answer play_arrow
A)
Auxin
done
clear
B)
CK
done
clear
C)
GA
done
clear
D)
None of these
done
clear
View Answer play_arrow
A)
A cytoplasmic receptor
done
clear
B)
Cyclic AMP
done
clear
C)
ATP
done
clear
D)
Epinephrine
done
clear
View Answer play_arrow
A)
In cytoplasm
done
clear
B)
On cell surface
done
clear
C)
In nucleus
done
clear
D)
On endoplasmic reticulum
done
clear
View Answer play_arrow
A)
The volume of urine will increase
done
clear
B)
The volume of urine will decrease
done
clear
C)
The pH of urine will change from 4.8 to 8.0
done
clear
D)
Secretion of urochrome will take place
done
clear
View Answer play_arrow
A)
Both \[C{{O}_{2}}\] and water get oxidized
done
clear
B)
Both \[C{{O}_{2}}\] and wafer get reduced
done
clear
C)
Water is reduced and \[C{{O}_{2}}\]is oxidized
done
clear
D)
Carbon dioxide get reduced and water get oxidized
done
clear
View Answer play_arrow
A)
10 pairs
done
clear
B)
12 pairs
done
clear
C)
24 pairs
done
clear
D)
36 pairs
done
clear
View Answer play_arrow
A)
Meiosis
done
clear
B)
Interphase
done
clear
C)
M - Phase
done
clear
D)
Pachytene
done
clear
View Answer play_arrow
A)
Marasmus
done
clear
B)
Rickets
done
clear
C)
Kwashiorkor
done
clear
D)
Pellagra
done
clear
View Answer play_arrow
A)
Grass - Grasshopper - Frog - Snake - Hawk
done
clear
B)
Grasshopper - Grass - Snake - Frog - Hawk
done
clear
C)
Hawk - Grasshopper - Grass - Frog - Snake
done
clear
D)
Frog - Snake - Hawk - Grasshopper - Grass
done
clear
View Answer play_arrow
A)
Variable region of heavy chain
done
clear
B)
Variable region of both heavy and light chain
done
clear
C)
Variable region of light chain
done
clear
D)
Constant region of both light and heavy chain
done
clear
View Answer play_arrow
A)
Antibodies
done
clear
B)
Weakened germs infection
done
clear
C)
Natural resistance
done
clear
D)
None of these
done
clear
View Answer play_arrow
A)
Tuberculosis
done
clear
B)
Small pox
done
clear
C)
Cholera
done
clear
D)
Typhoid
done
clear
View Answer play_arrow
A)
DNA\[\to \]RNA\[\to \]Proteins
done
clear
B)
DNA\[\to \]Proteins\[\to \]RNA
done
clear
C)
RNA\[\to \]DNA\[\to \]RNA\[\to \]proteins
done
clear
D)
RNA\[\to \]DNA\[\to \]proteins
done
clear
View Answer play_arrow
A)
\[\frac{1}{4}\]
done
clear
B)
\[\frac{2}{7}\]
done
clear
C)
\[\frac{1}{3}\]
done
clear
D)
\[\frac{3}{8}\]
done
clear
View Answer play_arrow
A)
\[2\]
done
clear
B)
\[\frac{8}{3}\]
done
clear
C)
\[\frac{10}{3}\]
done
clear
D)
\[\frac{11}{3}\]
done
clear
View Answer play_arrow
A)
6
done
clear
B)
7
done
clear
C)
8
done
clear
D)
9
done
clear
View Answer play_arrow
A)
7
done
clear
B)
6
done
clear
C)
8
done
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D)
5
done
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View Answer play_arrow
A)
6
done
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B)
4
done
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C)
2
done
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D)
0
done
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View Answer play_arrow
A)
\[\left( 2e-1,\text{ }2e \right)\]
done
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B)
\[(e-1,\,\,2e-1)\]
done
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C)
\[\left( \frac{e-1,}{2}\,\,,\,\,e-1 \right)\]
done
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D)
\[\left( 0\,\,,\,\,\frac{e-1}{2} \right)\]
done
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View Answer play_arrow
A)
\[\frac{1}{\sin 2{}^\circ }\]
done
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B)
\[\frac{1}{2\sin 2{}^\circ }\]
done
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C)
\[\frac{1}{3\sin 2{}^\circ }\]
done
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D)
\[\frac{1}{4\sin 2{}^\circ }\]
done
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A)
\[{{x}^{2}}+{{y}^{2}}+4x-6y+19=0\]
done
clear
B)
\[{{x}^{2}}+{{y}^{2}}-4x-10y+19=0\]
done
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C)
\[{{x}^{2}}+{{y}^{2}}-2x+6y-29=0\]
done
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D)
\[{{x}^{2}}+{{y}^{2}}-6x-4y+19=0\]
done
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View Answer play_arrow
A)
\[{{n}_{2}}>{{n}_{3}}>{{n}_{4}}>{{n}_{1}}\]
done
clear
B)
\[{{n}_{3}}>{{n}_{4}}>{{n}_{3}}>{{n}_{1}}\]
done
clear
C)
\[{{n}_{3}}={{n}_{1}}>{{n}_{4}}>{{n}_{2}}\]
done
clear
D)
\[{{n}_{2}}>{{n}_{1}}={{n}_{3}}>{{n}_{4}}\]
done
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View Answer play_arrow
A)
\[\frac{1}{\sqrt{2}}\]
done
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B)
\[\frac{1}{2\sqrt{2}}\]
done
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C)
\[\frac{-\,1}{\sqrt{2}}\]
done
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D)
\[-\frac{1}{2\sqrt{2}}\]
done
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A semicircular loop of radius R is rotated about its straight edge which divides the space into two regions one having a uniform magnetic field B and the other having no field. If initially the plane of loop is perpendicular to \[\overrightarrow{B}\](as shown), and if current flowing from O to A be taken as positive, the correct. plot of induced current v/s time for one time period is:
A)
done
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B)
done
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C)
done
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D)
done
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View Answer play_arrow
Both the inductors and the cell are ideal. Find the current (in Amperes) in 2H inductance in steady state.
A)
zero
done
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B)
1A
done
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C)
2A
done
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D)
3A
done
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A ray hits the y-axis making an angle \[\theta \] with y-axis as shown in the figure. The variation of refractive index with x-coordinate is \[\mu ={{\mu }_{0}}\,\,\left( 1-\frac{x}{d} \right)\] for \[0\le x\le d\,\,\left( 1-\frac{1}{{{\mu }_{0}}} \right)\] and \[\mu ={{\mu }_{0}}\] for \[x<0,\]where d is a positive constant. The maximum x-coordinate of the path traced by the ray is:
A)
\[d\,(1-\sin \theta )\]
done
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B)
\[d\,(1-\cos \theta )\]
done
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C)
\[d\,\sin \theta \]
done
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D)
\[d\,\cos \theta \]
done
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View Answer play_arrow
A)
39
done
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B)
40
done
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C)
59
done
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D)
60
done
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View Answer play_arrow
A)
increase continuously
done
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B)
decrease continuously
done
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C)
first increase, then decrease
done
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D)
first decrease, then increase.
done
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View Answer play_arrow
A)
Frequency must be increased and current after the change is 10 A
done
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B)
Frequency must be decreased and current after the change is 10 A
done
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C)
Frequency must be decreased and current is same as that of initial value
done
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D)
The given information is insufficient to conclude anything
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The oscillations represented by curve 1 in the graph are expressed by equation \[x=A\sin \omega \,t.\] The equation for the oscillations represented by curve 2 is expressed as:
A)
\[x=2A\sin \,(\omega \,t-\pi /2)\]
done
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B)
\[x=2A\sin \,(\omega \,t+\pi /2)\]
done
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C)
\[x=-\,2A\sin \,(\omega \,t-\pi /2)\]
done
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D)
\[x=A\sin \,(\omega \,t-\pi /2)\]
done
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View Answer play_arrow
A certain gas is taken to the five states represented by dots in the graph. The plotted lines are isotherms. Order of the most probable speed \[{{V}_{P}}\]of the molecules at these five states is:
A)
\[{{V}_{P\,at\,3}}>{{V}_{P\,at\,1}}={{V}_{P\,at\,2}}>{{V}_{P\,at\,4}}={{V}_{P\,at\,5}}\]
done
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B)
\[{{V}_{P\,at\,1}}>{{V}_{P\,at\,2}}={{V}_{P\,at\,3}}>{{V}_{P\,at\,4}}>{{V}_{P\,at\,5}}\]
done
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C)
\[{{V}_{P\,at\,3}}>{{V}_{P\,at\,2}}={{V}_{P\,at\,4}}>{{V}_{P\,at\,1}}>{{V}_{P\,at\,5}}\]
done
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D)
Insufficient information to predict the result.
done
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View Answer play_arrow
A)
The collision may be perfectly inelastic
done
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B)
The collision may be inelastic
done
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C)
The collision may be elastic
done
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D)
The collision must be inelastic
done
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View Answer play_arrow
A uniform stick of mass M is placed in a frictionless well as shown. The stick makes an angle \[\theta \] with the horizontal. Then the force which the vertical wall exerts on right end of stick is:
A)
\[\frac{Mg}{2\cot \theta }\]
done
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B)
\[\frac{Mg}{2\tan \theta }\]
done
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C)
\[\frac{Mg}{2\cos \theta }\]
done
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D)
\[\frac{Mg}{2\sin \theta }\]
done
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View Answer play_arrow
A)
\[\alpha ,\beta ,\gamma \]
done
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B)
\[\gamma ,\alpha ,\beta \]
done
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C)
\[\beta ,\gamma ,\alpha \]
done
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D)
\[\beta ,\alpha ,\gamma \]
done
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View Answer play_arrow
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
clear
View Answer play_arrow
A)
135 min
done
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B)
103.7 min
done
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C)
38.7 min
done
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D)
45 min
done
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View Answer play_arrow
A)
\[C{{H}_{3}}-NH-C{{H}_{3}}\]
done
clear
B)
done
clear
C)
\[C{{H}_{3}}-N{{H}_{2}}\]
done
clear
D)
\[P{{h}_{3}}N\]
done
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View Answer play_arrow
A)
1.18
done
clear
B)
0.19
done
clear
C)
\[-\,0.19V\]
done
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D)
None
done
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View Answer play_arrow
Given the following molar conductivities at \[25{}^\circ C:,\] HCl, \[426\,\,{{\Omega }^{-\,1}}\,\,c{{m}^{2\text{ }}}mo{{l}^{-\,1}}\] NaCl, \[126\text{ }{{\Omega }^{-1}}c{{m}^{2\text{ }}}mo{{l}^{-1}};\] NaCl (sodium crotonate), \[\text{83 }{{\Omega }^{-1}}c{{m}^{2\text{ }}}mo{{l}^{-1}}.\] What is the ionization constant of crotonic acid? If the conductivity of a 0.001 M crotonic acid solution is \[3.83\text{ }\times \text{ 1}{{\text{0}}^{-5}}\text{ }{{\Omega }^{-1}}\text{ }c{{m}^{-1\text{ }}}?\]
A)
\[{{10}^{-5~~}}\]
done
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B)
\[1.11\text{ }\times \text{ }{{10}^{-6}}\]
done
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C)
\[1.11\text{ }\times \text{ 1}{{0}^{-4~~}}\]
done
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D)
0.01
done
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View Answer play_arrow
A)
Tris (acetylacetonato) iron (III) chloride
done
clear
B)
Hexachloroplatinum (IV) tetraammine dicyano palatinate (IV)
done
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C)
Ammine bromochloro methylamine platinum (II)
done
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D)
cis-dichloro (ethylenediamine) platinum (II)
done
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View Answer play_arrow
A)
\[t_{2g}^{4},\,\,e_{g}^{0}\]
done
clear
B)
\[e_{g}^{4},\,\,t_{2g}^{0}\]
done
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C)
\[t_{2g}^{3},\,\,e_{g}^{1}\]
done
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D)
\[e_{g}^{2},\,\,t_{2g}^{2}\]
done
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View Answer play_arrow
What is the final product, C, of the following reaction sequence?
A)
done
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B)
done
clear
C)
done
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D)
done
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View Answer play_arrow
A)
\[{{O}_{2}},{{F}_{2}}\] S-P mixing of orbital
done
clear
B)
\[C{{l}_{2}},B{{r}_{2}}\] Undergo disproportionation
done
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C)
\[PC{{l}_{5}},B{{F}_{3}}\] Dipole moment zero
done
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D)
\[{{H}_{3}}P{{O}_{3}}\] Dibasic acid
done
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View Answer play_arrow
A diploid somatic cell from a rat has a total of 42 chromosomes \[\left( 2n\text{ }=\text{ }42 \right).\]Read the following statements and select the option with correct statements. [A] Rat has 21 different chromosomes. [B] Rat has 42 DNA molecules during \[{{G}_{1}}.\] [C] Rat has 21 bivalents in metaphase A of meiosis. [D] Rat has 42 DNA molecules in metaphase B of meiosis.
A)
[A] and [B]
done
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B)
[B] and [D]
done
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C)
[A], [B] and [C]
done
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D)
[A], [B], [C] and [D]
done
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View Answer play_arrow
A)
20
done
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B)
35
done
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C)
15
done
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D)
2
done
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View Answer play_arrow
A)
\[4800\text{ }rpm\]
done
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B)
800 rpm
done
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C)
9600 rpm
done
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D)
8 rpm
done
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View Answer play_arrow
A)
done
clear
B)
done
clear
C)
done
clear
D)
done
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View Answer play_arrow
Study the following pedigree. Choose the correct interpretation.
A)
if the pedigree depicts autosomal recessive trait, then the probability of child ?P? to be diseased is \[\frac{1}{2}\].
done
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B)
if the pedigree depicts X-linked recessive trait, then the probability of child ?P? to be diseased is \[\frac{1}{4}\].
done
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C)
If the pedigree depicts sex-linked trait, then there is a \[50%\]change that individual ?P? will be normal.
done
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D)
The pedigree depicts X-linked dominant trait, then the individual ?P? will be normal if female.
done
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View Answer play_arrow
Following structures are haploid, diploid or triploid:
A-Oosphere
B-Microspore
C-Synergids
D-Antipodal cell
E-Oospore
F-Nucellus
G-Endosperm
H-Tapetum
Which of the following groups show the correct sequence of ascending order of ploidy in ovule/seeds?
A)
C B D
done
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B)
A E G
done
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C)
E F H
done
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D)
C D G
done
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View Answer play_arrow
A)
3
done
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B)
4
done
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C)
5
done
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D)
6
done
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View Answer play_arrow
A)
Kinetochores of sister chromatids attach to opposite poles in meiosis I.
done
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B)
Kinetochores of sister chromatids attach to opposite poles in meiosis II.
done
clear
C)
Chiasmata is formed in prophase I.
done
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D)
Homologous chromosomes are segregated in meiosis I.
done
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View Answer play_arrow
A)
30 nm chromatin fiber?s will be observed
done
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B)
10 nm chromatin fibers will be observed
done
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C)
A scaffold and a huge number of loops of DNA fibres will be observed.
done
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D)
A huge number of loops of DNA fibres without scaffold will be observed.
done
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View Answer play_arrow
The following are some statements regarding glycolysis:
A. Glycolysis is not regulated by pyruvate kinase.
B. Lactate can be an end product of glycolysis.
C. Glycolysis cannot function anaerobically.
D. In erythrocytes, the second site in glycolysis for ATP generation can be bypassed.
Choose the option with incorrect statement
A)
A and B
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B)
B and D
done
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C)
C and D
done
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D)
A and C
done
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View Answer play_arrow