Define longitudinal waves. Discuss its motion with the help of an example. Also define the following terms for longitudinal waves: Rarefaction, Compression, Wavelength.

Longitudinal Waves: A wave in which the particles of the medium move parallel to the direction of wave propagation. Example: Sound waves in the air, where air particles vibrate back and forth in the same direction as the wave. Key Terms for Longitudinal Waves: Compression: A region where particles are close together, representing high pressure. … Read more