Question

The longitudinal wave can be observed in

• A. Elastic media
• B. inelastic media
• C. Both $\left(1\right)$ & $\left(2\right)$
• D. None of these

Answer 1

The correct option is A Elastic media

Longitudinal waves travel only in the elastic medium. These waves comprise of compressions and rarefactions. The speed of Longitudinal waves is given by :

$v=\frac{\sqrt{B}}{\rho }$ where B is the bulk modulus of elasticity and $\rho$ is the density of the medium