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Question
The speed of sound in a medium depends on
Options
the elastic property but not on the inertia property
the inertia property but not on the elastic property
the elastic property as well as the inertia property
neither the elastic property nor the inertia property.
Solution
the elastic property as well as the inertia property
Propagation of any wave through a medium depends on whether it is elastic and possesses inertia. A wave needs to oscillate (elastic property) for it to be propagated and if it does not have inertia, the oscillations won't keep on moving to and fro about the mean position.
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