Q.

The rate of emission of radiation of a black body at temperature 27oC is E1. If its temperature is increased to 327oC the rate of emission of radiation is E2.  The relation between E1 and E2 is

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a

E2 = 24 E1

b

E2 = 16 E1

c

E2 = 8 E1

d

E2 = 4 E1

answer is B.

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Detailed Solution

t1 = 270C, t2 = 3270C, T1 = 300k, T2 = 600k
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The rate of emission of radiation of a black body at temperature 27oC is E1. If its temperature is increased to 327oC the rate of emission of radiation is E2.  The relation between E1 and E2 is