What is Snell\'s law . Explain it

1.	What is Snell\'s law . Explain it
Answer» 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. Snell\'s law is a law stating that the ratio of the sines of the angles of incidence and refraction of a wave are constant when it passes between two given media.Hope it will help you.

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