MHT CET 2024 Physics question
A black body radiates power 'P' and maximum energy is radiate by it at a wavelength . The temperature of the black body is now so changed that it radiates maximum energy at the wavelength . The power radiate by it at new temperature is
Answer: (B)
Solution
Wien's displacement law: . When becomes , the temperature becomes . Stefan's law: radiated power , so
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