An Etymological Dictionary of Astronomy and Astrophysics

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Fresnel equation
  هموگش ِ فرنل  
hamugeš-e Fresnel
Fr.: équation de Fresnel  

For an electromagnetic wave incident upon the interface between two media with different indices of refraction, one of a set of equations that give the → reflection coefficient and → transmission coefficient at the optical interface.
These coefficients depend on the polarization degree of the incident wave.

See also: → Fresnel diffraction; → equation.