Question

Sound waves are travelling in a medium whose adiabatic elasticity is E and isothermal elasticity E' . The velocity of sound waves is proportional to

• A. $E$
• B. $\sqrt{E}$
• C. $\sqrt{E^{\prime }}$
• D. $\frac{E}{E^{\prime }}$

Answer 1

Answer: (B)

$\sqrt{E}$

Sound wave traveling in a medium is an adiabatic process and

velocity of sound $v=\sqrt{\frac{E}{\rho }}$.

So $v\propto \sqrt{E}$