A small hole is made in a metallic hollow enclosure whose walls are maintained at a temperature of `10^(3)`K. then the amount of radiant energy emitted per metre square per second from the hole isA. 56.7 JB. 56.7 KJC. `10^(3)J`D. data is in sufficient

A small hole is made in a metallic hollow enclosure whose walls are ma

1.	A small hole is made in a metallic hollow enclosure whose walls are maintained at a temperature of `10^(3)`K. then the amount of radiant energy emitted per metre square per second from the hole isA. 56.7 JB. 56.7 KJC. `10^(3)J`D. data is in sufficient
Answer» Correct Answer - B `E=sigmaT^(4)` `=5.67xx10^(-8)xx(10^(3))^(4)` `=5.67xx10^(-8)xx10^(12)=5.67xx10^(4)` `=56.7xx10^(3)J` `=56.7kJ`.

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A small hole is made in a metallic hollow enclosure whose walls are maintained at a temperature of `10^(3)`K. then the amount of radiant energy emitted per metre square per second from the hole isA. 56.7 JB. 56.7 KJC. `10^(3)J`D. data is in sufficient

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