NEET 2016 Physics question
A black body is at a temperature of 5760 K. The energy of radiation emitted by the body at wavelength 250 nm is , at wavelength 500 nm is and that at 1000 nm is . Wien's constant, nm K. Which of the following is correct?
Answer: (4)
Solution
By Wien's displacement law the wavelength of maximum emission is . So the spectral energy distribution of the black body peaks at 500 nm: the emission at 500 nm () is the largest, and the emission at 250 nm ()
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