Question

derive the formula of snell law and explain

Answer 1

1) The incident ray,refracted ray and the normal to the interface of two transparent media at point of incidence all lie in the same plane.

2) the ratio of sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given colour and for the pair of media is called Snell's law

Answer 2

snell's law is defined as the ratio of the sign of the angle of incidence to the Sine of the angle of refraction is a constant for the light of a given colour and for the given pair of media is expressed as the formula sin I/sin r=constant=mew