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A black body is at a temperature 300 K. ...

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

A

300

B

`(300)^(3)`

C

`(300)^(2)`

D

`(300)^(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
Temperature of a black body (T)=300K. Stefan's law of radiation states that energy emitted by the black body ` (E) prop T^(4) prop (300)^(4)` .
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