A ray of light travelling in air goes into water. The angle of refraction will be :
(a) 90∘ (b) smaller than the angle of incidence (c) it goes along the normal (d) greater than the angle of incidence
A ray of light after refraction becomes perpendicular to the normal. What is this angle of incidence called?
A ray of light traveling in air falls on the surface of water. The angle of incidence is 600 with the normal to the surface. The refractive index of water = 43. Calculate the angle of refraction. [2 MARKS]