What happens to density during rarefaction?

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Multiple Choice

What happens to density during rarefaction?

Explanation:
In a rarefaction, density decreases because the particles are spread apart, increasing the volume those same particles occupy. Density is mass per unit volume, so when spacing grows, the mass occupies a larger volume and the density drops. This region also has lower pressure, matching the reduced density. In a sound wave, the opposite occurs in compression, where particles crowd together and density increases. So, during rarefaction, density is reduced.

In a rarefaction, density decreases because the particles are spread apart, increasing the volume those same particles occupy. Density is mass per unit volume, so when spacing grows, the mass occupies a larger volume and the density drops. This region also has lower pressure, matching the reduced density. In a sound wave, the opposite occurs in compression, where particles crowd together and density increases. So, during rarefaction, density is reduced.

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