Question

Snell's law.can anyone give plz. I will Mark u brainlist.

Answer 1

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
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Answer 2

sin i/ sin r
means -- angle of incident ray divided by angle of reflected ray