A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ, which is less than the critical angle. Then there will be A ray of light travelling in water is incident on its surface open to air. The angle of incidence is θ which is less than the critical angle. Then there will be November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 17 - Refraction of Light by Plane Surfaces , Part 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related