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Longitudinal Waves

A sound wave ...

Question

A sound wave in air propagate similar to _________.

A

compressions and relaxations in a slinky

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B

an ocean wave

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C

a light wave.

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D

a ball thrown into the air

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Solution

The correct option is A compressions and relaxations in a slinky
In the air, sound travels from one point to another in the form of compressions and rarefactions, which is similar to the way a spring behaves when we compress it, and then release it. A light wave and an ocean wave are transverse waves.

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