The ratio of sin i/sin r is a:
A)
Variable
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B)
Constant
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C)
Zero
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D)
All of these
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E)
None of these
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A solar water heater can't be used to get hot water on:
A)
A sunny day
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B)
A cloudy day
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C)
A hot day
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D)
A windy day
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E)
None of these
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Which one of the following is the abiotic component of the environment?
A)
Plants
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B)
Animals
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C)
Micro-organisms
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D)
Soil
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E)
None of these
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The life supporting gases such as \[{{O}_{2}},\] \[{{N}_{2}}\] and \[C{{O}_{2}}\] are chiefly concentrated in:
A)
Troposphere
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B)
Mesosphere
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C)
Stratosphere
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D)
Exosphere
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E)
None of these
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Which one of the following correctly represents the relation among charge (Q), potential difference (V) and work done (W)?
A)
\[V=W\times Q\]
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B)
\[W=V/Q\]
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C)
\[V=Q/W\]
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D)
\[V=W/Q\]
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E)
None of these
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In which of the following media light will travel fastest?
A)
Ethyl alcohol \[\left( \mu =1.36 \right)\]
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B)
Sulphuric acid \[\left( \mu =1.43 \right)\]
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C)
Kerosene \[\left( \mu =1.44 \right)\]
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D)
Water \[\left( \mu =1.33 \right)\]
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E)
None of these
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What is the correct direction of flow of electrical impulses?
A)
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B)
done
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C)
done
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D)
done
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E)
None of these
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What will be the nature and size of the image of the object AB formed in the following condition?
A)
Real, inverted and larger
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B)
Virtual, erect and larger
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C)
Real, inverted and smaller
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D)
Virtual, erect and smaller
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E)
None of these
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Which one of the following statements is correct for electromagnetic induction?
A)
Charging a body adding electrons in it
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B)
Production of magnetic field by flowing current in a straight wire
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C)
Production of magnetic force by flowing current in a coiled wire
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D)
Production of current by relative motion between a magnet and a coil
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E)
None of these
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Which one of the following options correctly describes the magnetic field near a long straight current carrying wire?
A)
The field consists of straight lines perpendicular to the wire
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B)
The field consists of straight lines parallel to the wire
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C)
The field consists of radial lines originating from the wire
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D)
The field of concentric circles centered on the wire
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E)
None of these
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The vermiform appendix is an example of:
A)
Analogous organ
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B)
Homologous organ
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C)
Vestigial organ
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D)
Analytic organ
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E)
None of these
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In general, the number of electrons in the outermost shell of a metal atom is:
A)
Only 1
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B)
1 to 3
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C)
5 to 8
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D)
8
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E)
None of these
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An element has electronic configuration 2, 8, 1. It belongs to:
A)
Group no. \[-1\] and period no. \[-3\]
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B)
Group no. \[-3\] and period no.\[-1\]
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C)
Group no. \[-11\] and period no.\[-1\]
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D)
Group no. \[-1\] and period no.\[-11\]
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E)
None of these
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Two neighbours of homologous series differ by:
A)
\[-\,\,CH\]
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B)
\[-\,\,C{{H}_{2}}\]
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C)
\[-\,\,C{{H}_{3}}\]
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D)
\[C{{H}_{4}}\]
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E)
None of these
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Which one of the following is the outermost shell for elements of period 2?
A)
K shell
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B)
L shell
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C)
M shell
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D)
N shell
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E)
None of these
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A chemical reaction involves in:
A)
Only breaking of bonds
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B)
Only formation of bonds
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C)
Both breaking and formation of bonds
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D)
Splitting of nucleons
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E)
None of these
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A salt derived from a strong base and a weak acid will give a salt that is:
A)
Acidic
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B)
Basic
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C)
Neutral
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D)
All of these
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E)
None of these
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The correctly balanced equation for \[Fe{{S}_{2}}+{{O}_{2}}\to F{{e}_{2}}{{O}_{3}}+S{{O}_{2}}\] is:
A)
\[2Fe{{S}_{2}}+{{O}_{2}}\to F{{e}_{2}}{{O}_{3}}+4S{{O}_{2}}\]
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B)
\[2Fe{{S}_{2}}+3{{O}_{2}}\to 2F{{e}_{2}}{{O}_{3}}+4S{{O}_{2}}\]
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C)
\[4Fe{{S}_{2}}+4{{O}_{2}}\to 2F{{e}_{2}}{{O}_{3}}+2S{{O}_{2}}\]
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D)
\[4Fe{{S}_{2}}+11{{O}_{2}}\to 2F{{e}_{2}}{{O}_{3}}+8S{{O}_{2}}\]
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E)
None of these
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Metal carbonate on reacting with dilute acid releases which one of the following?
A)
\[{{N}_{2}}\]
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B)
\[C{{O}_{2}}\]
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C)
\[{{O}_{2}}\]
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D)
\[{{H}_{2}}\]
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E)
None of these
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Which one of the following metals does not displace \[{{H}_{2}}\] gas from dilute HCI or dilute\[{{H}_{2}}S{{O}_{4}}\]?
A)
Na
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B)
Mg
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C)
Cu
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D)
Al
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E)
None of these
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Which one of the following is an unsaturated hydrocarbon?
A)
Acetylene
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B)
Butane
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C)
Propane
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D)
Decane
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E)
None of these
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Which group of elements in modern periodic table is referred as 'alkali metals'?
A)
Group 1
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B)
Group 2
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C)
Group 17
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D)
Group 18
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E)
None of these
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Which one of the following compounds has a ring-carbon chain structure?
A)
Ethane
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B)
Ethene
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C)
Ethyne
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D)
Benzene
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E)
None of these
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Which one of the following has the longest small intestine?
A)
Herbivores
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B)
Carnivores
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C)
Omnivores
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D)
Autotrophs
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E)
None of these
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Which of the following statements are true for flowers? (1) Flowers are always bisexual (2) They are the sexual reproductive organs (3) They are produced in all groups of plants (4) After fertilisation they give rise to fruits
A)
(1) and (4)
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B)
(2) and (3)
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C)
(1) and (3)
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D)
(2) and (4)
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E)
None of these
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Villi are present in which of the following parts of the digestive system?
A)
Pancreas
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B)
Stomach
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C)
Small intestine
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D)
Oesophagus
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E)
None of these
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Cerebellum is situated in which one of the following parts of brain?
A)
Forebrain
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B)
Midbrain
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C)
Hindbrain
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D)
All of these
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E)
None of these
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Which one of the following is not a part of the female reproductive system in human being?
A)
Ovary
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B)
Uterus
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C)
Vas deferens
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D)
Fallopian tube
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E)
None of these
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The common passage for sperm and urine in male reproductive system is:
A)
Ureter
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B)
Seminal vesicle
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C)
Urethra
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D)
Vas deferens
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E)
None of these
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Which one of the following acids is the end product of anaerobic respiration which takes place in our muscles during vigorous physical exercises?
A)
Hydrochloric acid
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B)
Lactic acid
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C)
Pyruvic acid
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D)
Citric acid
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E)
None of these
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On crossing tall pea plant with dwarf pea plant Mendal found the ratio of dwarf pea plants in \[{{F}_{2}}\] generation was:
A)
25%
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B)
50%
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C)
75%
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D)
100%
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E)
None of these
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Genetic information is carried out by long chain of molecules made up of:
A)
Phosphates
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B)
m RNA
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C)
Nucleotides
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D)
Cellulose
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E)
None of these
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Speciation takes place when variation occurs with:
A)
Change due to accidents
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B)
Geographical isolation
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C)
Death of an organism
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D)
Death of whole population
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E)
None of these
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Accumulation of non-biodegradable pesticides in the food chain in increasing amount at every higher trophic level is known as:
A)
Eutrophication
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B)
Pollution
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C)
Bio magnification
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D)
Accumulation
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E)
None of these
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Calculate the current in a wire if 900 C of charge passes through it in 10 minutes.
A)
0.5 A
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B)
1 A
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C)
1.5 A
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D)
2.5 A
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E)
None of these
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Calculate the resistance of a copper wire of length 1 m and area of cross section\[2\,m{{m}^{2}}\]. Resistivity of the copper wire is\[1.7\times {{10}^{-8}}\,\Omega m\].
A)
\[7.5\times {{10}^{-2}}\,\Omega \]
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B)
\[8.5\times {{10}^{-3}}\,\Omega \]
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C)
\[3.5\times {{10}^{-3}}\,\Omega \]
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D)
\[4.5\times {{10}^{-3}}\,\Omega \]
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E)
None of these
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An object is placed at the distance of 30 cm from a convex lens. A real image is formed 20 cm away from the lens. Find the focal length of the lens.
A)
6 cm
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B)
12 cm
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C)
18 cm
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D)
24 cm
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E)
None of these
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The far point of a myopic person is 80 cm in front of the eye. What is the power of the lens required to correct the problem?
A)
\[+\,\,1.5\text{ }D\]
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B)
\[-\,\,1.25\text{ }D\]
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C)
\[-\,\,3.5\text{ }D\]
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D)
\[-\,\,2.05\text{ }D\]
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E)
None of these
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Find the current supplied by the cell in the circuit shown in the figure below.
A)
0.2 A
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B)
0.5 A
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C)
3 A
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D)
1.5 A
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E)
None of these
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An object is placed at a distance of 30 cm from a concave mirror of focal length 20 cm. Where will the image be formed?
A)
At the distance of 30 cm in front of the mirror
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B)
At the distance of 30 cm behind the mirror
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C)
At the distance of 60 cm in front of the mirror
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D)
At the distance of 60 cm behind the mirror
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E)
None of these
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