Question

what is rarefaction and compression in sound?
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Answer 1

Answer:

• Compression- a region in a longitudinal (sound) wave where the particles are closest together.

• Rarefaction- a region in a longitudinal (sound) wave where the particles are furthest apart.

Answer 2

Answer:

when sound wave travels through a medium, say air, the particles of medium disturb in the same fashion. i.e.compression and refraction (depression) when air particles come closer it is called compression. on the other hand, when particles go farther than their normal position it is called refraction.

Explanation:

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