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Q.

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

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a

E2=4E1

b

E2=16E1

c

E2=24E1

d

E2=8E1

answer is B.

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Detailed Solution

∵E∝T4

∴E1E2=T1 T24

⇒E1E2=37+273347+2734=3106204=124=116

∴E2=16E1

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