Light travels through a glass plate of thickness t and refractive index μ. If c is the speed of light in vacuum, the time taken by light to travel this thickness of glass is Light travels through a glass plate of thickness t and refractive index μ. If c is the speed of light in vacuum the time taken by light to travel this thickness of glass is November 8, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related