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What is the effect of humidity on sound waves when humidity increases?

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Speed of sound waves is more

Speed of sound waves is less

Speed of sound waves remains same

Speed of sound waves becomes zero

answer is A.

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Detailed Solution

$V e l o c i t y o f s o u n d = \sqrt{\frac{γ R T}{M}}$

When water vapour are present in air, average molecular weight of air decreases and hence velocity increases.

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