Question

Velocity of sound in air____with increases of moisture
a] increases
b] decreases
c] does not vary
d] either a or b depending upon temperature
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Answer 1

Explanation:

Speed of sound in air increases with the increase in humidity in air. The density of water vapour is about 5/8th times the density of dry air at ordinary temperature, therefore the increase of moisture in air tends to decrease the density of air.

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Answer 2

Answer:

The answer is option b because moisture absorbs sound