Question

what are the requisites of the medium for the propagation of sound? Briefly,explain them.

Answer 1

1. Medium particles should be elastic     (no loss of energy and regain their position)
2. rigid 

Answer 2

Elastic, friction less and possess inertia

Explanation:

Sound waves require a medium to transport themselves. They travel due to change in pressure of the medium. The sound waves can travel through solid, liquid as well as gases. The waves can reflect, refract or attenuate during their propagation.

The requisites of the medium of propagation of sound waves are as follows:

1. The medium should be elastic. This required because particles must come back to original position. Particles should not stay displaced.

2. The medium should have some inertia in order to store some mechanical energy.

3. The medium should be friction free in order to minimize the energy loss.

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