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A black body at 227^(@)C radiates heat a...

A black body at `227^(@)C` radiates heat at the rate of `7 cal cm^(-2) s^(-1)`. At a temperature of `727^(@)C`, the rate of heat radiated in the same unit will be

A

80

B

60

C

50

D

112

Text Solution

Verified by Experts

The correct Answer is:
D
`P prop T^(4)`
`(P_(2))/(P_(1))=((1000)/(500))^(4)`
`P_(2)=16P_(1)=112`
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