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Longitudinal Waves

A long spring...

Question

A long spring is fixed at one end. A person holding the other end compresses the spring with a jerk. The compression travels along the length of the spring. Which kind of wave is travelled along the length of the spring?

A

Electromagnetic waves

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B

Transverse waves

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C

Longitudinal waves

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D

Both (A) and (C)

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Solution

The correct option is C Longitudinal waves
If the spring is compressed, particles of the spring come close and there is compression.When spring is extended, particles rarefact from each other . Direction of particle motion is in the direction of wave propagation, Hence longitudinal waves .

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