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MHT CET 2023 Physics question

PhysicsThermal Properties of MatterMHT CET 2023

Compare the rate of loss of heat from a metal sphere at C with the rate of loss of heat from the same sphere at C, if the temperature of the surrounding is C. (nearly)

Answer: (B)

Solution

By Stefan's law the net rate of heat loss is . Temperatures in kelvin: , , . In units of 100 K: ratio \dfracExtra open brace or missing close brace{9^4$ -

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Question ID VK-097229