Question

Explain the reflection of sound wave from the surface of a denser medium?

Answer 1

In the denser medium the surface of the medium becomes tough and the frequency of sound is very less than that of light i.e 20-20000 hz and also sound has a bigger wavelength than light. So, it became an impossible task for sound to enter in the denser medium. So it retraces it's direction from the denser medium and gets reflected by that medium. (Although energy of the soundwave is lost in reflection and in other factors.)

Answer 2

When the sound waves are incident on a surface of a denser medium as a wall. ... The phase difference between the reflected and incident wave is .This phenomena is called reflection of sound waves. According to reflection law , The angle of reflection equal to the angle of incident.

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