If Young's modulus of the material of a rod is Y and density is rho then time taken by sound wave to travel l length from bottom is

If Young's modulus of the material of a rod is Y and density is rho th

1.	If Young's modulus of the material of a rod is Y and density is rho then time taken by sound wave to travel l length from bottom is
Answer» `lsqrt((rho)/(Y))` `lsqrt((Y)/(rho))` `(1)/(L)SQRT((Y)/(rho))` `(1)/(l)sqrt((rho)/(Y))` Solution :`t=("distance")/("speed")=(l)/(sqrt((Y)/(rho)))=lsqrt((rho)/(y))`