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JEE PHYSICS MCQ: RAY OPTICS

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A plane wave of sound travelling in air is incident upon a plane water surface. The angle of incidence is

60^{\circ}

. If velocity of sound in air and water are

330 \mathrm{~m} / \mathrm{s}

and

1400 \mathrm{~m} / \mathrm{s}

, then the wave undergoes

View answer and explanation

Correct option: B

reflection only

Option B (reflection only) is correct because the angle of incidence is greater than the critical angle, leading to total internal reflection.

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