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A body of surface are 15xx10^(-3)m^2 emi...

A body of surface are `15xx10^(-3)m^2` emits 0.3 kcal in 40 second at a temperature `70^(@)C`. The emissive power of the surface at that temperature is

A

`2.66kcal//m^2s`

B

`5.66xx10^(-3)kcal//m^2s`

C

`0.50kcal//m^2s`

D

`2.77xx10^(-3)kcal//m^2s`

Text Solution

Verified by Experts

The correct Answer is:
C
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