Question

Two bodies $A$ and $B$ are arranged as shown in figure. Which of the following options is correct regarding body $A$?

• A. $Q_{emission}<Q_{absorption}$
• B. $Q_{emission}=Q_{absorption}$
• C. $Q_{emission}>Q_{absorption}$
• D. $Q_{emission}=0.5Q_{absorption}$

Answer 1

The correct option is C $Q_{emission}>Q_{absorption}$

As temperature of body $A$ is greater than temperature of body $B$, therefore body $A$ radiates more heat as compared to body $B$. Therefore, body $A$ will emit more heat energy than it can absorb.
$\therefore Q_{emission}>Q_{absorption}$