Answer: False
Explanation :
If the medium moves perpendicular to the direction of the wave motion, the wave is classified as a longitudinal wave. The statement is false.
The mechanical waves are of two types i.e. longitudinal waves and the transverse waves.
The waves in which the medium moves perpendicular to the direction of the wave motion is transverse wave.
But in the longitudinal wave, the medium moves in the same direction as that of the direction of motion of the wave.
So, the given statement is false.
