For a solid rod, the Young's modulus of elasticity is $3.2 \times 10^{11} \mathrm{Nm}^{-2}$ and density is $8 \times 10^3 \mathrm{~kg} \mathrm{~m}^{-3}$. The velocity of longitudinal wave in the rod will be.
Solution
$v=\sqrt{\frac{Y}{\rho}}=\sqrt{\frac{3.2 \times 10^{11}}{8 \times 10^{3}}}$
<br/><br/>$$
\begin{aligned}
& =\sqrt {0.4 \times {{10}^8}} \\\\
& = \sqrt {40 \times {{10}^6}} \\\\
& =6.32 \times 10^{3} \mathrm{~m} / \mathrm{s}
\end{aligned}
$$
About this question
Subject: Physics · Chapter: Properties of Solids and Liquids · Topic: Elasticity
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