MHT CET 2026 Physics question
A black body radiates maximum energy at wavelength '' at temperature T<sub>1</sub> and its emissive power is E. When the temperature of the body is changed to T<sub>2</sub>, it radiates maximum energy at wavelength , then the emissive power will become
Answer: (B)
Solution
Wien's displacement law: , so . Stefan-Boltzmann law: emissive power . Therefore $ = ( = ( =
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