Which of the following statements are correct regarding longitudinal waves?

Compressions and rarefactions are formed

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Particles oscillate about their mean positions

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Particles oscillate perpendicular to the direction of wave propagation

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Particle oscillate parallel to the direction of wave propagation

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Solution

The correct options are
A Compressions and rarefactions are formed
B Particles oscillate about their mean positions
D Particle oscillate parallel to the direction of wave propagation
In a longitudinal wave, the particles of the medium oscillate about their mean positions, and the direction of their oscillation is always parallel to the direction of the propagation of the wave. Also, when the particles vibrate in such a manner, they form compressions and rarefactions.

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