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Question

Sound is a longitudinal as well as a mechanical wave.


A

True

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B

False

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Solution

The correct option is A

True


A wave which travels parallel to the direction of motion of particles is called as longitudinal wave.

A mechanical wave is the one which requires a material medium to propagate through.

Sound travels through compressions and expansions of air. The wave travels parallel to the direction of motion of the wave. Hence it is a longitudinal wave.
Sound requires a medium to propagate which implies that it is a mechanical wave.


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