What is Snell's Law of refraction?

Refraction is the bending of the path of a light wave as it passes across the boundary separating two media. Refraction is caused by the change in speed experienced by a wave when it changes medium. Lesson 1, focused on the topics of "What causes refraction?" and "Which direction does light refract? read more

Snell's law (also known as Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air. read more

Snell's law applies to the refraction of light in any situation, regardless of what the two media are. Using Snell's Law to Predict An Angle Value As with any equation in physics, the Snell's Law equation is valued for its predictive ability. read more

Snell's law of refraction is the relationship between the angles of incidence and refraction with respect to the refraction indices of two different media. Snell's law of refraction can be applied to the refraction light for any two media. read more