What must be the stress in a stretched wire of a material whose Young's modulus is

PHYSICS · Subjective · CBSE · Physics · Mechanical Properties of Solids · Mechanical Properties of Solids

Problem

What must be the stress

\left(\frac{F}{A}\right)

in a stretched wire of a material whose Young's modulus is

Y

, for the speed of longitudinal waves to equal 30 times the speed of transverse waves?