1.
The function of heavy water in a nuclear reactor
is to
a)
Slow down the speed of neutrons
b)
Increase the speed of neutrons
c)
Cool down the reactor
d)
Stop the nuclear reaction.
2.
Which of the following statements is / are true?
·
The angle of the axis in relation to the planer
in which the earth revolves around the sun is not constant.
·
The amount of energy given off by the sun changes with the transparency of the
atmosphere.
Select the correct answer using the codes given below.
a)
Only 1
b)
Only 2
c)
Both 1 and 2
d)
Neither 1 nor 2
3.
Confirmation of the presence of highs boson will
justify
a)
Both the standard model and superstring theory
b)
The unification of all the four fundamental
forces
c)
The steady – state model of the universe
d)
The mass of the fundamental particles.
4.
A liquid is kept in a regular cylindrical vessel
up to a certain height. If this vessel is replaced by another cylindrical
vessel having half the area of cross – section of the bottom, the pressure on
the bottom will.
a)
Remain unaffected
b)
Be reduced to half to earlier pressure
c)
Be increase to twice the earlier pressure
d)
Be reduced to one – fourth the earlier pressure
5.
The lines of force of uniform magnetic field
a)
Must be convergent
b)
Must be divergent
c)
Must be parallel to each other
d)
Intersect
6.
A jet
engine works on the principle of conservation of
a)
Linear momentum
b)
Angular momentum.
c)
Energy
d)
Mass
7.
In terms of magnetic properties, oxygen belongs
to
a)
magnetic
materials
b)
ferromagnetic materials
c)
para magnetic materials
d)
Diagrammatic materials.
8.
Light travels slower in glass than in air because.
a)
Refractive index of air is less than that of
glass
b)
Refractive index of air is greater than that of
glass
c)
Density of glass is greater than that of air
d)
Density of glass is less than that of air
9.
A close
bottle containing water at room temperature was taken o\to the moon and then the
lid is opened. The water will
a)
Freeze
b)
Boil
c)
Decompose into oxygen ad hydrogen
d)
Not change at all.
10.
Glass is actually
a)
a crystalline solid
b)
an ionic solid
c)
an elastic solid
d)
a vitrified liquid
ANSWERS
1. (A)
2. (B)
3. (A)
4. (A)
5. (C)
6.(A)
7. (C)
8. (A)
9 (B)
10. (C)