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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

Two spheres 'S' and 'S' have radii 'R' and '3R', temperature 'T' K and K respectively. If they are coated with a material of same emissivity, rate of radiation of 'S' is E then rate of radiation of 'S' is (spheres are of the same material) [MHT-CET 2022]

Answer: (A)

Solution

Rate , so for S it is ; the

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Question ID VK-063790