A ray of light from a denser medium strikes a rare medium at angle of – InterviewSolution

1.	A ray of light from a denser medium strikes a rare medium at angle of incidence i as shown in figure. The reflected and refracted rays make an angle of 90∘ with each other. The angles of reflection and refraction are r and r'. The critical angle is
Answer» A ray of light from a denser medium strikes a rare medium at angle of incidence i as shown in figure. The reflected and refracted rays make an angle of $90^{\circ}$ with each other. The angles of reflection and refraction are r and r'. The critical angle is

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