Practice MCQ Questions and answers on Physics-GK

A. Increases with increase in temperature

B. Decreases with increase in temperature

C. Is the same at all temperatures

D. Does not follow any pattern as temperature changes

A. Super conductivity

B. Joule-Kelvin effect

C. Thermo-electric effect

D. Adiabatic demagnetisation

A. Charle's law

B. Newton's law of cooling

C. The law of heat exchange

D. The law of conservation of energy

A. Ammonia

B. Nitrogen

C. Freon

D. Oxygen

A. Does not depends on the angle of incidence

B. Increases with the increase in angle

C. Decreases with the increase in angle of incidence

D. Becomes maximum for angle of incidence equal to 45°

A. If you conserve energy you will not be as tired

B. Energy cannot be created or destroyed but can be converted from one form to another

C. No chemical reaction is 100 percent efficient

D. The entropy of the universe is always increasing

A. Deflection and advection

B. Latent heat of condensation

C. Expansion and compression of the air

D. Partial absorption of solar radiation by the atmosphere

A. It is a mode of transfer of heat through matter by molecular activity.

B. It is the balance between incoming and outgoing radiation

C. It is the radiation from the earth in the form of long waves.

D. It is the amount of heat which the surface of earth receives from the sun.

A. They do not intersect each other

B. They slope downwards to the right

C. They are parallel to each other

D. They are concave to each other

A. Ammeter

B. Pyranometer

C. Dynamometer

D. Anemometer