Which one of the following expressions gives the speed of longitudinal sound waves in…

PHYSICS · Single correct · A Level · Physics · Waves · Waves

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}}

(b)

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

(c)

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

(d)

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