Wien's displacement law is a law of physics that states that there is an inverse relationship between the wavelength of the peak of the emission of a black body and its temperature. where is the peak wavelength in meters, is the temperature of the blackbody in kelvins (K), andb is a constant of proportionality, called Wien's displacement constant and equals 2.897 768 5(51) × 10–3 m K (2002 CODATA recommended value)The two digits between the parentheses denotes the uncertainty (the standard deviation at 68.27 onfidence level) in the two least significant digits of the mantissa.
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