A ray of light is incident at the glass-water interface at an angle i. It emerges finally parallel to the surface of water. Then, the value of μg would be : A ray of light is incident at the glass-water interface at an angle i. It emerges finally parallel to the surface of water. Then the value of μg would be : November 9, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related