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MHT CET 2023 Physics question

PhysicsThermal Properties of MatterMHT CET 2023

A black body radiates maximum energy at wavelength and its emissive power is 'E'. Now due to change in temperature of that body, it radiates maximum energy at wavelength . At that temperature emissive power is

Answer: (A)

Solution

Wien's law: . So . Stefan's law: emissive power , so $ =

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Question ID VK-095108