Wien's Distribution Law
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Wien's Distribution Law, stated 1896, was named after its originator, German physicist Wilhelm Wien (1864-1928).
Let be the equilibrium energy per unit volume, in the wavelength range to , in an emptied cavity with opaque, thick walls at a temperature T. Subsequently,
where C is a constant and f is a universal function of and T. For lengthy wavelengths, an imprecise model of Wien’s Distribution Law, labeled Wien’s formula, is
In Wien’s formula above, A and B are both constants.