itssneha55 itssneha55 13-04-2024 Physics contestada Define Snell's law of refraction. A ray of light is incident on a glass slab at an 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 sin 32.7° = 0.540 ).