When a transparent parallel plate of uniform thickness t and refractive index μ is interposed normally in the path of a beam of light, the optical path is the optical path is When a transparent parallel plate of uniform thickness t and refractive index μ is interposed normally in the path of a beam of light November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a String , Part 1 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related