In a longitudinal wave, particles vibrate ______ the direction of the propogation of the wave.
A
along
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B
perpendicular to
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C
independent of
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D
oblique to
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Solution
The correct option is A along Longitudinal waves are characterized by the motion of particles of the medium in the direction of wave propagation. Particles make to and fro motion in the direction of wave propagation and transfer energy to the neighbouring particles.