Prasar bharati akashvani exam solved paper

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1. Which one of the following physical quantities, is not defined in the terms of force per unit
area:
(a) pressure
(b) strain
(c) stress
(d) Young’s modulus
Ans:b

2. The distance moved by a moving body is equal to:
(a) area between the distance-time graph and distance axis
(b) area between the speed-time graph and time axis
(c) area between the distance-time graph and time axis
(d) area between the speed-time graph and distance axis.
Ans:b

3. A beaker containing water weighs 100 gm. It is placed on the pan of a balance and a piece of
metal weighing 70 gm. and having a volume of 10cc. is placed inside the water in the beaker.
The weight of the beaker and the metal would be:
(a) 170gm.
(c) 100gm.
(b)160gm.
(d)30gm.
Ans:a

4. For the same kinetic energy, the momentum shall be maximum for:
(a) electron
(b) proton
(c) deuteron
(d) alpha particle
Ans:d

5. The common balance works on the principle of equality of:
(a) forces
(b) moments of forces
(c) masses
(d) masses of pans
Ans:b

6. A particle moves in a circle of radius R with a constant speed under a centripetal force F. The
work done in completing a full circle is:
(a) 2RF
(b) ΠR2F
(c) 2ΠRF
(d)Zero
Ans:d

7. When two quantities are plotted on the graph paper against each other and the result so
obtained is a st. line, then
(a) Both the quantities are equal
(b) The quantities are inversely proportional to each other
(c) Sum of both is zero
(d) The quantities are proportional to each other
Ans:d

8. What is the order of magnitude of 260°?
(a)103
(b) 104
(c)102
(d) 10
Ans:c

9. The maximum value of g is:
(a) At the poles
(b) At the top of the Mount Everest
(c) At the equator
(d) Below the sea level
Ans:a

10. A fixed volume of gas at 27°C exerts a pressure of 750 mm. If the gas is heated to a pressure
of 1500mm., temperature must be:
(a) 600°C
(b) 327°C
(c) 54°C
(d) 13.5°C
Ans:b

11. A body of mass 2 kg acted upon by a constant force, travels a distance of 3 metres in the first
second and a further distance of meter in the next second. The force acting on the body is?
(a) 12 Newtons
(b) 8 Newtons
(c) 4 Newtons
(d) 1 Newton
Ans:c

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