A ray of light suffers a minimum deviation when incident on an equilateral prism of refractive index root 2. The angle of incidence is : A ray of light suffers a minimum deviation when incident on an equilateral prism of refractive index root 2. The angle of incidence is : November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related