Snell's law for sound

Classical Mechanics Level 2

According to Snell's law , when a light ray travels from air (a rarer medium) to water (a denser medium), it bends towards the normal. How will a sound wave bend if it is incident on the air-water boundary just like the light ray?

Note: A rarer medium is one in which the wave travels at lower speed.

It will not bend at all It will bend towards the normal It will bend away from the normal

Rohit Gupta by Rohit Gupta , 34, India

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1 solution

Num Ic
Nov 1, 2020

One idea is to check how sound travels in air and water. but i was too lazy to check it,
so i just remembered that even far away surface sounds can be heard when diving.

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??????????????????

. . - 3 months, 2 weeks ago

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if you tell your question, i can try to answer it.

num IC - 3 months, 2 weeks ago

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So what does it mean?(I mean how it is related to the problem)

. . - 3 months, 2 weeks ago

if the sound would travel like (A) in the picture then a diver would hear a sound mainly when the sound is created above him.
but when you dive you can hear some talk above the water even if you are quite far away from him, so the sound travels like (C) in the picture.

num IC - 3 months, 2 weeks ago

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