According to Wien’s law, the wavelength λmax of maximum thermal emission of electromagnetic energy from a body of temperature T obeys
λmaxT = 2.898 x 10-3 m • K
Show that this law follows from the spectral energy density dU/dλ obtained in Exercise 13. Obtain an expression drat, when solved, would yield the wavelength at which this function is maximum. The transcendental equation cannot be solved exactly, so it is: enough to: show that λ = 2.898 X 10-3 m • K/T solves it to a reasonable degree of precision.
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