Questions from Physics

1. Which lamp has the highest energy efficiency?
(A) Incandescent lamp
(B) LED lamp
(D) Arc lamp
2. What is the use of radiator in motor car?
(A) to balance the pressure
(B) to balance the energy
(C) to balance the temperature
(D) None of these
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4. Static body possesses
(A) Kinetic energy
(B) Potential energy
(C) Nuclear energy
(D) Gravitational energy
5. Only glucose is used for energy requirement by
(A) Kidney
(B) Muscles
(C) Brain
(D) Liver
6. In an atomic explosion, enormous energy is released which is due to the
(A) conversion of neutrons into protons
(B) conversion of chemical energy into heat energy
(C) conversion of mechanical energy into nuclear energy
(D) conversion of mass into energy
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7. What is the principle of atom bomb
(A) nuclear fission
(B) nuclear fusion
(C) nuclear energy
(D) None of these
8. The energy possessed by the water collected in the reservoir of a dam is
(A) Kinetic energy
(B) Mechanical energy
(C) Potential energy
(D) Law of conservation of energy
9. Capacity of doing work is known as
(A) Velocity
(B) Momentum
(C) Acceleration
(D) Energy
10. A steam engine converts heat energy into
(A) Electrical energy
(B) Mechanical energy
(C) Chemical energy
(D) None of these


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