MHT CET Physics question

A person swimming in water can't hear by sound produced in air because:

(A)Waves can't propagates in water
(B)Sound waves reflected back in air
(C)Their is no refraction of sound waves in water
(D)Only very small amount of wave is refracted in waterCorrect

Answer: (D)

Solution

Because of the large impedance mismatch, almost all the sound is reflected at the air-water surface and only a very small part is transmitted; waves do

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Question ID VK-069872