Define Snell\'s law of refraction. A ray of light is incident on a glass slab at angle of incidence
Channel: Doubtnut
Date: 2020-01-28

Define Snell\'s law of refraction. A ray of light is incident on a glass slab at angle of incidence of `60^(@)`. If the angle of refraction be `32.7^(@)`, calculate the refractive index of glass. (Given: sin`60^(@)=0.866` and `sin32.7^(@)=0.540)`.