Physics

Problem

Which one of the following expressions gives the speed

v

of longitudinal sound waves in a uniform solid rod of Young’s modulus

Y

and density

\rho

? a)

v=\sqrt{\dfrac{2Y}{\rho}}

v=\sqrt{\dfrac{Y}{\rho}}

v=\sqrt{\dfrac{Y}{2\rho}}

v=2\sqrt{\dfrac{Y}{\rho}}