MHT CET 2026 Physics question
The energy spectrum of a black body exhibits a maximum of wavelength . The temperature of the black body is now changed such that the energy is maximum at wavelength. The ratio of power radiated by the black body will be
Answer: (B)
Solution
By Wien's displacement law constant, so . By Stefan–Boltzmann law the power radiated is proportional to (same surface area and emissivity), so the ratio of the new power to the original power
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