A ray of light is incident at an angle i on a glass slab of refractive index μ. The angle between reflected and refracted light is 90^o . Then the relationship between i and μ is. A ray of light is incident at an angle i on a glass slab of refractive index μ. The angle between reflected and refracted light is 90^o . Then the relationship between i and μ is. November 8, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related