Physics STD12 PHYSICSTotal Internal Reflection admin4 years ago1 week ago01 mins Concept map by Pavani i = angle of incidence, r = angle of refraction, 1 = rarer medium, 2 = critical angle, 3 = total internal reflection. Drawing by Aakash Watch this video and answer the quiz given below. Click on the + marks and identify the appropriate labels in Total internal reflection. Post navigation Previous: Saitechinfo Deep Learning SessionsNext: Grand opportunity for IIT JEE Engineering Aspirants in 2021 Click here to cancel reply.You must be logged in to post a comment.