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

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

Waves

Solution:

$t = \frac{Distance}{speed} = \frac{l}{\sqrt{\frac{Y}{P}}}$