A ray of light is incident normally on one of the refracting surfaces of an equilateral prism. if the refractive index of the material of the prism is 1.5, then A ray of light is incident normally on one of the refracting surfaces of an equilateral prism. if the refractive index of the material of the prism is 1.5 then November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related