Is it true that in longitudinal waves, particles vibrate along the direction of propagation?

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True

False

answer is A.

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Detailed Solution

The above statement is true.
Waves in which particles vibrate along the direction of propagation are called longitudinal waves.
Sound is produced by the vibrations of the particles of the object. Hence particles are the main carriers of the sound waves. But the position of the particles does not change while vibrating. Also, particles vibrate along the direction of the propagation of the sound. Hence it is a longitudinal wave.

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