Practice MCQ Questions and answers on Physics-GK

A. Reflection

B. Conduction

C. Radiation

D. Convection

A. Collide

B. Combine

C. Heated

D. None of the above

A. Black and rough

B. Black and smooth

C. White and rough

D. White and smooth

A. Lower wavelengths only

B. Intermediate wavelengths only

C. Higher wavelengths only

D. All wavelengths

A. It absorbs sun's rays

B. It reflects sun's rays

C. It retains the heat inside by the green house effect

D. It rediates heat better than metals

A. To make it smooth and frictionless

B. To make it rust-proof

C. To reduce heat loss by radiation

D. To make it more durable

A. The floor and carpet are at different temperatures

B. The stone conveys the heat away from the feet more rapidly than the carpet

C. The carpet is a better conductor of heat than the stone

D. The human body maintains a constant temperature

A. Increase in level of sea

B. Change in crop pattern

C. Change in coast line

D. All of the above

A. Two thin shirts become thicker so prevent transmission of heat

B. Air layer between two shirts works as good conductor

C. Air layer between two shirts behaves like insulating media

D. No radiation of heat takes place

A. Conduction

B. Convection

C. Radiation

D. Reflection