A black body radiates at the rate of $W$ watts at a temperature $T$. If the temperature of the body is reduced to $T/3$, it will radiate at the rate of (in $Watts$)

Question

Dr. Abubacker · Accepted Answer

(a) $P = \left( \frac{Q}{t} \right) \propto T^{4} \Rightarrow \frac{W}{P_{2}} = \left( \frac{T}{T/3} \right)^{4} \Rightarrow P_{2} = \frac{W}{81}$

Q. A black body radiates at the rate of $W$ watts at a temperature $T$. If the temperature of the body is reduced to $T/3$, it will radiate at the rate of (in $Watts$)

Explanation

Reviewed by Dr. Abubacker

Want more practice?