About mechanical waves?????
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• These waves in air are longitudinal.
• They require a medium for their propagation.
• They cannot travel through a vacuum.
• These waves donot exhibit the property of polarisation.
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A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.
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