Consider a ray of light incident from air onto a slab of glass (refractive index n) of width d, at an angle θ . The phase difference between the ray reflected by the top surface of the glass and the bottom surface is at an angle θ . The phase difference between the ray reflected by the top surface of the glass and the bottom surface is Consider a ray of light incident from air onto a slab of glass (refractive index n) of width d November 19, 2020 Category: Chapter 10 - Wave Optics , NCERT Exemplar Class 12 , Physics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related