What is longitudinal wave?What happens to air particles when sound travels through air ??Explain it in brief.
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air molecules (the particles of the medium) are moving in a direction that is parallel to the direction that the wave moves, the sound wave is referred to as a longitudinal wave. The result of such longitudinal vibrations is the creation of compressions and rarefactions within the air.
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a wave (such as a sound wave) in which the particles of the medium vibrate in the direction of the line of advance of the wave
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