Law of refraction (Snell's law) Calculator

This CalcTown calculator calculates the angle of refraction of light when it crosses an interface.

Angle of incidence

degrees

Refractive index of incident medium (n_i)

Refractive index of refracting medium (n_r)

Angle of refraction

degrees

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where

θi=Angle of incidence

θr=Angle of refraction

n_i=Refractive index of medium 1

n_r=Refractive index of medium 2