Question

what is snell's law of refraction prove
$\frac{ \sin(i) }{ \sin(r) } = constant$

Answer 1

snells law of refraction is the incident ray the normal at the point of incidence and the refracted ray all lie in the same plane the second one is for a given pair of media and given colour of light the ratio of the sine of angle of incidence to the sine of angle of refraction is constant