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15 kwi 2020 · Find out about Snell's law of refraction. What is the equation. Check out the derivation of Snell's law using Fermat's principle. Where is Snell's law applied.
Snell's law (also known as the Snell–Descartes law, the ibn-Sahl law, [1] 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.
It takes learners step-by-step through each component of Snell’s Law, from how to measure incident and refractive angles through set-up and solution of the related equation. It even explains the calculator function keys needed to accurately evaluate the sine functions.
Fig. 1: Snell’s Law. Angles are measured relative to the normal (dotted line). Part I: Data Refraction refers to the bending of light when it crosses an interface between two materials. We will discuss this from a wave point of view in class, but for now we will consider it experimentally.
