Velocity of light in air is 3 x 10^8 m/s and refractive index of water is 1.33 . The time taken by the light to travel a distance of 500 m in water is Velocity of light in air is 3 x 10^8 m/s and refractive index of water is 1.33 . The time taken by the light to travel a distance of 500 m in water is November 8, 2020 Category: Chapter 9 - Ray Optics , MTG NEET Physics , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related