 ##  [Wien's Displacement Law](/wiens-displacement-law) 

  ##  [Wien's Displacement Law](https://engineering.quantumdictionary.io/wiens-displacement-law-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A law for ideal blackbody radiation stating that the wavelength λ_max at which the spectral radiance per unit wavelength is maximal is inversely proportional to the absolute temperature T of the emitter: λ_max = b / T, where b ≈ 2.89777×10⁻³ m·K.