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MHT CET 2024 Physics question

PhysicsThermal Properties of MatterMHT CET 2024

Ordinary bodies P and Q radiate maximum energy with wavelength difference m. The absolute temperature of body P is four times that of Q. The wavelength at which body Q radiates maximum energy is

Answer: (2)

Solution

Wien's displacement law: (constant). So , and with : . The hotter body P radiates its maximum at the shorter wavelength, and the difference is $λ_Q -

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Question ID VK-095571