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Q.

There is a temperature difference of 1K between two black patches of skin on patient’s chest and each patch having area A. The radiant heat emitted from them is differ by 2 % , then temperatures of two patches may be.

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a

300 K, 301 K

b

100 K, 101 K

c

400 K, 401 K

d

200 K, 201 K

answer is C.

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Detailed Solution

P=σAT4ΔPP×100=4ΔTT×100;T2=T1±ΔT

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