Ray Optics: Snell's Law

Explanations 3

• Refraction is the bending of a light wave as it crosses the boundary between two different mediums. This is caused by the wave changing speed as it crosses into a different medi…

  By Nisha Devasia, Moor Xu

• Snell's law (also known as the Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when…

  By Iris

• This is a derivation of Snell's Law. We will derive the law using Fermat's Principle, which states that, when light travels from one point to another, it takes the path that req…

  By Sujay Kazi