A black body at hot temperature at 227°C radiates heat at a rate of 5 – McqOptions

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1.	A black body at hot temperature at 227°C radiates heat at a rate of 5 cal/cm2 s. at a temperature of 727°C the rate of heat radiated per unit area will be?
A.	50 cal/cm2 s
B.	250 cal/cm2 s
C.	80 cal/cm2 s
D.	100 cal/cm2 s
Answer» D. 100 cal/cm2 s

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