Home Physics Transmission of Heat Radiation (General, Kirchoff's Law, Black Body) Two thermometers A and B are exposed in sun …
Physics Transmission of Heat Radiation (General, Kirchoff's Law, Black Body) MCQ (Single Correct)

Two thermometers A and B are exposed in sun light. The valve of A is painted black, But that of B is not painted. The correct statement regarding this case is

A
Temperature of A will rise faster than B but the final temperature will be the same in both
B
Both A and B show equal rise in beginning
C
Temperature of A will remain more than B
D
Temperature of B will rise faster

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Text Solution

Verified by Experts
The correct answer is:
A

As for a black body rate of absorption of heat is more. Hence thermometer A shows faster rise in temperature but finally both will acquire the atmospheric temperature.

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