Wien's law

Wien's law or Wien law may refer to:

• Wien approximation, an equation used to describe the short-wavelength (high frequency) spectrum of thermal radiation.
• Wien's displacement law, an equation that describes the relationship between the temperature of an object and the peak wavelength or frequency of the emitted light.
• Wien-Planck law, an alternate name for the Planck law, which describes the complete spectrum of thermal radiation.

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