Question

with the help of labelled diagram state and explain the laws of reflection of light what is the refractive index of a substance if light travels through air at 3 into 10 8 m s on entering in another medium its speed becomes 2 into 10 MS calculate the refractive index of other medium​

Answer 1

LAWS OF REFLECTION :

(a) The angle of incidence (i) is equal to the angle of reflection.

(b) The incident ray , the normal to the reflecting surface at the point of incidence , and the reflected ray , all lie in the same line.

Refractive index = 3×10^8 / 2×10^8

= 1.5