Snell's law is used to determine the direction of light rays through refractive media with varying indices of refraction.

Snell’s law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”. Snell’s law formula is expressed as: \ (\begin {array} {l}\frac {sin\;i} {sin\;r}=constant=\mu\end {array} \)

2020年4月15日 · Snell’s law gives a relationship between the angles of incidence and refraction. In order to understand this relationship, it is critical to know the refractive indices of the two mediums. The history of Snell’s Law goes back to 1621 when Dutch astronomer and mathematician Willebrord Snell discovered the laws of refraction.

2025年1月2日 · Snell’s law, in optics, a relationship between the path taken by a ray of light in crossing the boundary or surface of separation between two contacting substances and the refractive index of each. This law was discovered in 1621 by the Dutch astronomer and mathematician Willebrord Snell.

Snell's Law provides the quantitative means of answering the question of "By how much does the light ray refract?" The task of answering this question involves using indices of refraction and the angle of incidence values in order to determine the angle of refraction.

Snell's Law, also known as the Law of Refraction, is an equation that relates the angle of the incident light and the angle of the transmitted light at the interface of two different mediums. Snell's Law can be applied to all materials, in all phases of matter.

The law of refraction is also known as Snell's Law, named for Willobrord Snell, who discovered the law in 1621. Like with reflection, refraction also involves the angles that the incident ray and the refracted ray make with the normal to the surface at the point of refraction.