A metal cube of each side 0.05 m long emits 0.6 kcal in 80 second. The emissive power of its surface is

A metal cube of each side 0.05 m long emits 0.6 kcal in 80 second. The

1.	A metal cube of each side 0.05 m long emits 0.6 kcal in 80 second. The emissive power of its surface is
Answer» `0.5 kcal/m^2 SEC` `0.6 kcal/m^2 sec` `0.05 kcal/m^2 sec` `0.55 kcal/m^2 sec` ANSWER :A

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A metal cube of each side 0.05 m long emits 0.6 kcal in 80 second. The emissive power of its surface is

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