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JEE · NEET Previous Year Question

$A ray of light is incident at from a medium of refractive index 2 into a medium of refractive index 1 , then the angle of refraction is$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $30^{\circ}$
B $60^{\circ}$
C $45^{\circ}$
D $90^{\circ}$

Correct answer: D

Solution

(d) By Snell's law 2 sin 30^{\circ} = 1 sin r \Rightarrow sin r = 1 \Rightarrow r = 90^{\circ}

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