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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

Two black spheres 'P' and 'Q' have radii in the ratio 3:2. The wavelengths of maximum intensity radiation are in the ratio 3:4 respectively. The ratio of radiated power by 'P' to 'Q' is [MHT-CET 2023]

Answer: (D)

Solution

gives and power gives

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Question ID VK-063787