Heat and Thermodynamics MCQ question and answer with solution | Physics Gk MCQs

A. isolation

B. conduction

C. radiation

D. convection

A. First increases and then decreases

B. First decreases and then increases

C. Grows equally

D. Decreases evenly

A. our body is cold in winter and the water appears to be warm

B. the temperature inside the Earth is higher than the atmospheric temperature

C. the pumping process causes friction which warms up the water

D. inside water comes out and absorbs heat from the environment

A. Decrease in size

B. Flatten into disc like shape

C. Increase in size

D. Maintain the same size and shape

A. at freezing point

B. below freezing point

C. at melting point

D. above melting point

A. Both (A) and (R) are true and (R) is the correct explanation of (A)

B. Both (A) and (R) are true, but (R) is not the correct explanation of (A)

C. (A) is true, but (R) is false

D. (A) is false, but (R) is true

A. steam pierces through the pores of body quickly

B. steam has latent heat

C. steam is gas and engulfs the body quickly

D. temperature of steam is higher

A. Principle of Thermal equilibrium

B. Principle of Colours

C. Principle of Calorimetry

D. Principle of Vaporisation

A. specific heat

B. water equivalent

C. latent heat

D. None of the above

A. the ultraviolet rays

B. γ-rays

C. the infrared rays

D. X-rays