Question

what is snells law? how will u like express it

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

Snell, s law states the ratio of angle of incidence to and angle of refraction is constant .
sin i /sin r =k....
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