A ray of light travelling in a transparent medium of refractive index μ, falls on a surface separating the medium from air at an angle of incidence of 45o . For which of the following value of μ the ray can undergo total internal reflection ? A ray of light travelling in a transparent medium of refractive index μ falls on a surface separating the medium from air at an angle of incidence of 45o . For which of the following value of μ the ray can undergo total internal reflection ? August 20, 2020 Category: Chapter 32 - Ray Optics , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related A ray of light travelling in a transparent medium falls on a surface separating the medium from air, at an angle of incidence of 45^∘. The ray undergoes total internal reflection. If u is the refractive index of the medium with respect to air, select the possible values of u from the following.Light ray is incident on a prism of angle A = 60^o and refractive index μ= root2 . The angle of incidence at which the emergent ray grazes the surface is given byA ray is incident at an angle of incidence i on one surface of a prism of small angle A and emerges normally from the opposite surface. If the refractive index of the material of the prism is μ, the angle of the incidence i is nearly equal to