Two identical objects A and B are at temperatures `T_A` and `T_B`. Respectively. Both objects are placed in a room with perfectly absorbing walls maintained at a temperature `T(T_AgtTgtT_B)`. The objects A and B attain the temperature T eventually. Select the correct statements from the following:

Options

A. (a)A only emits radiation while B only absorbs it until both attain the temperature T
B. (b)A loses more heat by radiation than it absorbs, while B absorbs more radiation than it emits, until they attain the temperature T
C. (c)Both A and B only absorb radiation, but do not emit it, until they attain the temperature T
D. (d)Each object continuous to emit and absorb radiation even after attaining the temperature T

Answer

BD

Explanation

Every object emits and absorbs radiation simultaneously. If energy emitted is more than energy absorbed, temperature falls and vice versa.