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MHT CET Physics question

PhysicsThermal Properties of MatterMHT CET

The energy spectrum of a black body exhibits a maximum around a wavelength . The temperature of the black body is now changed such that the energy is maximum around a wavelength . The power radiated by the black body will now increase by a factor of

Answer: (A)

Solution

Wien's law constant gives , and Stefan's law gives

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Question ID VK-063438