High Quality Content by WIKIPEDIA articles! Wien`s displacement law states that the wavelength distribution of thermal radiation from a black body at any temperature has essentially the same shape as the distribution at any other temperature, except that each wavelength is displaced on the graph. Apart from an overall T3 multiplicative factor, the average thermal energy in each mode with frequency only depends on the ratio . Restated in terms of the wavelength , the distributions at corresponding wavelengths are related, where corresponding wavelengths are at locations proportional to . Blackbody radiation approximates to Wien`s law at high frequencies.