1. The 23½° South latitude is known as
(A) The Tropic of
Cancer
(B) The Tropic of
Capricorn
(C) The Equator
(D) The Prime
Meridian
2. A man weighing 65 kg jumps from a 100 ft high building
with a load of 35 kg. What wlii be the load experienced by him?
(A) 20 kg
(B) 100 kg
(C) 200 kg
(D) Zero
3. The universal law of gravitation was propounded by
(A) Kepler
(B) Galileo
(C) Newton
(D) Copernicus
4. Summer solstice occurs in the Southern hemisphere
(A) December 22
(B) January 22
(C) February 22
(D) February 28
5. Microphone is used to convert
(A) Sound waves into
electrical energy
(B) Sound waves into
light rays
(C) Electrical energy
into sound waves
(D) Sound waves into
magnetic currents
6. Steel is more elastic than Rubber because
(A) Its density is
high
(B) It is a metal
(C) Ratio of stress
to strain is more
(D) Ratio of stress
to strain is less
7. Pressure cooker cooks rice faster because
(A) It always lets
the steam escape
(B) High pressure
crushes the hard covering of rice grains
(C) It does not let
the heat energy escape easily
(D) High pressure
raises the boiling point of water
8. The clear sky looks blue because
(A) Reflection of
light
(B) Refraction of
light
(C) Diffraction of
light
(D) Dispersion of
light
9. The main reserves of phosphorus in the biosphere is in
the
(A) Hydrosphere
(B) Atmosphere
(C) Lithosphere
(D) Troposphere
10. The normal threshold of hearing is around
(A) 60-80 db
(B) 45-60 db
(C) 100-120 db
(D) 25-45 db
11. Ozone hole refers to
(A) Hole in ozone
layer
(B) Decrease in the
ozone layer in troposphere
(C) Decrease in
thickness of ozone layer in stratosphere
(D) Increase in the
thickness of ozone layer in troposphere
12. Super conductivity is a phenomenon in which the
resistance of a substance
(A) Increases with
temperature
(B) Decreases with
temperature
(C) Does not change
with temperature
(D) Becomes zero at
very low temperature
1. For seeing objects at the surface of water from a
submarine under water, the instrument used is
(A) Kaleidoscope
(B) Periscope
(C) Spectroscope
(D) Telescope
2. If speed of rotation of the earth increases, weight of
the body
(A) Increases
(B) Remains unchanged
(C) Decreases
(D) May decrease or
increase
3. The largest planet of the solar system is
(A) Earth
(B) Mars
(C) Jupiter
(D) Saturn
4. Which is the closest planet to Sun?
(A) Mars
(B) Venus
(C) Jupiter
(D) Mercury
5. What is the instrument that determines specific gravity
of liquids?
(A) Hygrometer
(B) Hydrometer
(C) Gravimeter
(D) Hypsometer
6. Primitive man first learnt
(A) To make fire
(B) To tame animals
(C) To make a wheel
(D) To grow grain
7. Solar Cell converts
(A) Light energy into
heat energy
(B) Solar energy into
electrical energy
(C) Solar energy into
sound energy
(D) Solar energy into
heat energy
8. The image formed on the retina of the eye is
(A) Real and Inverted
(B) Upright and Real
(C) Virtual and
Upright
(D) Enlarged and Real
9. The blue colour of the water in the sea is due to
(A) Refraction of the
blue light by the impurities in sea water
(B) Reflection of
blue sky by the sea water
(C) Absorption of
other colors except the blue colour by water molecules
(D) Scattering of
blue light by water molecules
10. The oil in the wick of a lamp rises up due to
(A) Pressure
difference
(B) Low viscosity of
oil
(C) Capillary action
(D) Gravitational
force
11. Food is cooked in a pressure cooker quickly because
(A) Boiling point of
water decreases
(B) Boiling point of
water increases
(C) It absorbs heat
quickly
(D) It retains heat
for a longer duration
12. A glass tumbler containing ice shows droplets of water
on the outer surface because
(A) The outer surface
of the tumbler shows hygroscopic effect
(B) The moisture in
the air on coming in contact with the cold surface of the tumbler condenses in
the form of droplets of water
(C) Water from inside
oozes out through minute porous wall of the tumbler
(D) Both (A) and (C)
13. The sky appears blue because
(A) It is actually
blue
(B) The atmosphere
scatters blue light more than the others
(C) All colors
interface to produce blue
(D) In white light,
blue colour dominates
14. A thick glass tumbler cracks more easily than a thin one
when hot water is poured into it. Why?
(A) Thick glass is
more brittle than thin glass.
(B) Thick glass is of
inferior quality.
(C) The inner surface
of the tumbler expands more than its outer surface.
(D) The outer surface
of the tumbler expands more than its inner surface.
15. In the visible spectrum, the colour having the shortest
wavelength is
(A) Green
(B) Yellow
(C) Violet
(D) Blue
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