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A small hole is made in a hollow enclosu...

A small hole is made in a hollow enclosure whose walls are at temp. of 1000 K. The amount of energy coming out of the hole per `cm^(2)` per sec is :

A

567 ergs

B

5670 ergs

C

5670000 ergs

D

56700000 ergs.

Text Solution

Verified by Experts

The correct Answer is:
D
`E=sigmaT^(4)=5.67xx10^(-5)xx(1000)^(4)=5.67xx10^(7)`
`E=56700000` ergs
Thus correct choice is (d).
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