Light of wavelength 5000 A^˙ falls on a plane reflecting surface. For what angle of incidence is the reflected ray normal to the incident ray? Light of wavelength 5000 A^˙ falls on a plane reflecting surface. For what angle of incidence is the reflected ray normal to the incident ray? November 8, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related