A ray of light travelling on glass (μ = 3/2) is incident on a horizontal glass-air surface at the critical angle θc …..

Q.A ray of light travelling on glass (μ = 3/2) is incident on a horizontal glass-air surface at the critical angle θc. if a thin layer of water (μ = 4/3) is now poured on the glass-air surface, the angle at which the ray emerges into air the water-air surface is

(a) 60°
(b) 45°
(c) 90°
(d) 180°
Ans: C

Author: Rajesh Jha

QuantumStudy.com

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