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Amount of heat radiations emitted by a s...

Amount of heat radiations emitted by a solid sphere of radius r at any temperatures is proportional to the following .?

A

`r`

B

`r^(2)`

C

`r^(3)`

D

`r^(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
From stefan' s law `E = e A sigma T^(4)`
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