A ray of light passes from a denser medium to a rarer mediu… | CGP Edu

Physics Optics Refraction & Critical Angle Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: September 12, 2026

A ray of light passes from a denser medium to a rarer medium at an angle of incidence . The reflected and refracted rays make an angle of 90 0 with each other. The angle of reflection and refraction are respectively r and r’. The critical angle is given by :

A

B

C

D

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