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A black body of temperature T is inside ...

A black body of temperature `T` is inside a chamber of temperature `T_(0)` Now the closed chamber is slightly opened to Sun that temeperature of black body `(T)` and chamber `(T_(0))` remain constant .

A

The rate of emission of energy from the black body remains the same.

B

The rate of emission of energy from the black body increases

C

The rate of absorption of energy by the black boby increases.

D

The energy radiated by the black body equals the energy absorbed by it.

Text Solution

Verified by Experts

The correct Answer is:
A, D
From Stefan.s law, the rate of emission of energy from a black body is proportional to (`T-T_0)^4`. Since T and `T_0` remain constant, the rate of emission of energy remains the same. Since the temperature of the black body remains constant, the energy radiated by it is equals to energy absorbed by it. Hence the correct choices are (a) and (d).
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