Snell's law

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Related to Law of refraction: Law of reflection

Snell's law

 (snĕlz)
n.
A law describing the refraction of a ray of light at the surface between two media, such that the product of the refractive index of the first medium and the sine of the angle of incidence equals the product of the refractive index of the second medium and the sine of the angle of refraction.

[After Willebrord Snel van Royen (1580-1626), also called Willebrord Snellius, Dutch astronomer and mathematician who formulated the law.]

Snell's law

(snɛlz)
n
(General Physics) physics the principle that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant when a light ray passes from one medium to another
[C17: named after Willebrord Snell (1591–1626), Dutch physicist]
References in periodicals archive ?
As such, the principle is an example of a 'law of nature' - a generic principle from which a variety of theories ranging from Snell's law of refraction through to quantum mechanics may be developed.
Next, the numerical model calculated the position and direction vector according to the optical behavior of the photons passing through the prism using the ray-tracing technique and the law of refraction.
The angle of incidence and refraction for LCP and RCP waves, using Snell's law of refraction, are given as: