Question

A ray of light passes from air to glass. If the angle of incidence is 74° and the angle of refraction is 37°, find the refractive index of the glass.

Answer 1

i = 74°, r = 37°

`n = sin i/sin r = (sin74°)/(sin37°) = 0.9613/0.6018 = 1.597`

∴ n= 1. 597, is the refractive index of the glass.