![]() It is present at the bottom of the curve. The region where particles are less crowded is called rarefaction. It is called the compression region and it is present on the top of the curve. Particles are denser at a particular region on the curve. The longitudinal wave image below is a graph of distance from source versus density of air. In figure 2, a longitudinal wave in the air is represented graphically. If the direction of the particles present in the shaft moves parallel to the axis of the shaft then it is called longitudinal vibration.Įxplain longitudinal waves with diagrams. From the above figure, the longitudinal wave is a wave in which particle displacement is parallel to the direction of wave propagation.Ī wave in which the particle displacement is perpendicular to the direction of wave propagation is called a transverse wave. ![]() The wave illustration of the two types of waves can be observed in the figure below.įigure 1 Wave illustration of longitudinal and transverse wavesĪ wave consisting of a periodic vibration traveling in the same direction as the direction that the wave travels is called a longitudinal wave. They are longitudinal waves and transverse waves. Waves can be classified into two types based on the direction of particles relative to the direction of the wave travel.
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