A black body at 127oC emits the energy at the rate of 106 J/m2 s. The temperature of a black body at which the rate of energy emission is 16x106 J/m2 s is :
A
508oC
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B
273oC
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C
400oC
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D
527oC
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Solution
The correct option is D527oC Using Stefan's Law: E2E1=(T2T1)4T2=T14√E2E1T2=(127+273)4√16×106106=800KT2=527∘C