Question

define.Longitudinal wave​

Answer 1

$\huge\bf\colorbox{pink}{Answer}$

✔✔Longitudinal wave, wave consisting of a periodic disturbance or vibration that takes place in the same direction as the advance of the wave.

✔✔ Sound moving through air also compresses and rarefies the gas in the direction of travel of the sound wave as they vibrate back and forth.