A concave lens of glass, refractive index 1.5 has both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75, it will behave as a A concave lens of glass it will behave as a : refractive index 1.5 has both surfaces of same radius of curvature R. On immersion in a medium of refractive index 1.75 November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 18 - Refraction at Spherical Surfaces , Part 2 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related