Physics, asked by dhirajpatil3267, 4 months ago

coefficient of emission of an opaque body is 0.6. radiant heat energy is incident on it at the rate of 20 watts. determine the quantity of radiant heat reflected by it in 2 minutes

Answers

Answered by shivamraj3251

0

0.4 i.e. 40%

quantity of heat reflect 0.4×p×t

0.4×20×2×60

=960

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