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A spherical body of area A and emissivit...

A spherical body of area A and emissivity `e=0.6` is kept inside a perfectly black body. Total heat radiated by the body at temperature T

A

`0.4 sigmaAT^4`

B

`0.8 sigmaAT^4`

C

`0.6 sigmaAT^4`

D

`1.0 sigmaAT^4`

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