List of top Physics Questions on Refraction of Light asked in MET

A rectangular glass slab ABCD of refractive index \(n_1\) is immersed in water of refractive index \(n_2\) \((n_1>n_2)\). A ray of light is incident at the surface AB of the slab as shown. The maximum value of the angle of incidence \(\alpha_{\max}\) such that the ray comes out only from the another surface CD is given by

The angle of minimum deviation \( \delta_m \) for an equilateral glass prism is \( 30^\circ \). The refractive index of the prism is

A beam of light is incident at $60^\circ$ to a plane surface. The reflected and refracted rays are perpendicular to each other then refractive index of the surface is