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A hot body will radiate maximum energy i...

A hot body will radiate maximum energy if its surface is

A

white and rough

B

white and polished

C

black and rough

D

black and polished

Text Solution

Verified by Experts

The correct Answer is:
C
Radiation Is greater from a rough surface because its effective area Is greater than its geometric area. Black colour Is a good radiator. Hence, black and rough surface shall radiate heat rapidly
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