State three characteristics of the medium required for propagation of sound?

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Solution

The three characteristics of the medium necessary for sound propagation in a medium are:
(i) The medium is required to be elastic so that its particles may revert to their initial position after displacement on either side. In other words, the particles are capable of vibrating about their mean positions.
(ii) The medium must have inertia in order for the particles to store mechanical energy.
(iii) The medium should be frictionless such that them is no loss of energy in the propagation of sound through it.

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