Question

A person deep inside water cannot hear sound produced in air. Why?​

Answer 1

Explanation:

Thus most of the sound produced in air and incident at an angle i ≥ 14° gets reflected back in air and very small amount is refracted into water. Hence a person inside water cannot hear the sound produced in air

Answer 2

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Thus most of the sound produced in air and incident at an angle i ≥ 14° gets reflected back in air and very small amount is refracted into water. Hence a person inside water cannot hear the sound produced in air.