A black body is at 727^(@)C. It emits energy at a rate which is propor

1.	A black body is at 727^(@)C. It emits energy at a rate which is proportinal to :
Answer» `(1000)^(4)` `(1000)^(2)` `(727)^(4)` `(727)^(2)`. Solution :According to Stefan.s law `EpropT^(4)`, where T is absolute temperature of BLACK BODY. `Eprop(727+273)^(4)` `rArrEprop(1000)^(4)` Correct CHOICE is (a).

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A black body is at 727^(@)C. It emits energy at a rate which is proportinal to :

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