Question

what is mean by snells law

Answer 1

Hey mate !!!

During refraction of light,light follows the snells law.

=> Sin i/sin r = Constant or

=>n1 Sin i = n2 Sin r

Hope it helps !

Answer 2

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According to the Snell's law,

The ratio of sine of angle of incidence to the sine of angle of refraction is constant.

sine of angle of incidence(i)/sine of angle of refraction(r)=constant

this constant is called refractive index(n).

n=sin i/sin r