Question

A particle in a mechanical wave is performing SHM as $x=cos(\pi t+\frac{3\pi }{2})$

• A. frequency of wave is $\pi$
• B. wave is longitudinal
• C. wave is transverse
• D. all of the above

Answer 1

The correct option is B wave is longitudinal

$SHM:x=\cos (\pi t+\frac{3\pi }{2})$

Heree, $W=\pi$

$\Rightarrow 2\pi F=\pi$

$[F=\frac{1}{2}{H}_3]$

The wave is longitudinal as the particles oscillates only in the direction of motion.

$\therefore$ Option (B) is correct.