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The change of direction of propagation of any wave phenomenon which occurs when the wave velocity changes. The term is most frequently applied to...



= Encyclopedia Article; = Research Update
Figure 1.Physical basis for Snell's law.
From Encyclopedia article 'Refraction of waves'
Figure 2.Behavior of ray traveling from medium of high refractive index to medium of low refractive index. (a) When ?1 ?c', ray is reflected.
From Encyclopedia article 'Refraction of waves'
Figure 3.Path of light in medium having continuously varying index of refraction n=n(y).
From Encyclopedia article 'Refraction of waves'