Q. 65.0( 1 Vote )

The speed of sound in a medium depends on
A. the elastic property but not on the inertia property

B. the inertia property but not on the elastic property

C. the elastic property as well as the inertia property

D. neither the elastic property nor the inertia property

Answer :

The speed of the sound in a fluid is

and in a longitudinal solid rod


For extended solids, V is a complicated function of B as well as G (Shear Modulus). B, Y and G are measures of elastic properties and ρ is the measure of inertia property. Hence the speed of sound in a medium depends on the elastic as well as the inertia property, thus option C is correct.

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