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Question

In a sound wave,is the region of high pressure andis the region of low pressure.

A
compression
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B
rarefaction
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C
crest
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D
trough
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Solution

The correct options are
A compression
B rarefaction
During wave propagation, when a particle moves forward, it compresses the air in front of it and creates a high pressure or high-density region. This region is called compression. When a particle moves backwards, it creates a low pressure or low-density region. This region is called rarefaction.

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