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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

A metal ball of surface area 200 cm and temperature 527°C is surrounded by a vessel at 27°C. If the emissivity of the metal is 0.4 then the rate of loss of heat from the ball is (Stefan's constant J/s m K):

Answer: (C)

Solution

10^{-8}(800^4300^4)$≈

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Question ID VK-063098