Question

The speed v of sound wave in a fluid having bulk modulus and density is

Answer 1

A basic and most important concept to find velocity of sound is ...

$v=\sqrt{\frac{\textbf{elastic property}}{\textbf{inertial property}}}$

in case of fluid, elastic property is measured with help of bulk modulus and inertial property is measured with help of density.

if we assume, bulk modulus is $\beta$ and density is $\rho$

so, $v=\sqrt{\frac{\beta}{\rho}}$ this is the required expression of velocity of sound, bulk modulus and density of fluid.