A person deep inside water cannot hear sound waves produces in air. Wh

1.	A person deep inside water cannot hear sound waves produces in air. Why?
Answer» Because as speed of sound in water is roughly four times the sound in air, hence refractive index u = Sin i/Sin r = Va/Vw = 1/4 = 0.25 For, refraction r_max = 900, i_max=140. Since i_max ≠ r_max hence, sounds gets reflected in air only and person deep inside the water cannot hear the sound.

A person deep inside water cannot hear sound waves produces in air. Why?

Answer»

Because as speed of sound in water is roughly four times the sound in air, hence refractive index u = Sin i/Sin r = Va/Vw = 1/4 = 0.25

For, refraction r_max = 900, i_max=140. Since i_max ≠ r_max hence, sounds gets reflected in air only and person deep inside the water cannot hear the sound.

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A person deep inside water cannot hear sound waves produces in air. Why?

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