Thermal Properties Of Matter Ques 38
38. A black body is at temperature of $500$ $ K$. It emits energy at rate which is proportional to
[1997]
(a) $(500)^{4}$
(b) $(500)^{3}$
(c) $(500)^{2}$
(d) $500$
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Answer:
Correct Answer: 38.(a)
Solution:
- (a) According to Stefan’s Law $E=\sigma e A T^{4}$
$E \propto T^{4} ;$ so, $E \propto(500)^{4}$
BETA
