Transmission Of Heat Question 230

Question: A black body is at a temperature 300 K. It emits energy at a rate, which is proportional to

[Pb. PMT 1998; AIIMS 2002; MH CET 2003]

Options:

A) $ 300 $

B) $ {{(300)}^{2}} $

C) $ {{(300)}^{3}} $

D) $ {{(300)}^{4}} $

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Answer:

Correct Answer: D

Solution:

$ E\propto T^{4} $