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In Which Medium the Speed of Sound is More: Humid Air Or Dry Air? Give a Reason to Your Answer. - Physics

Short Note

In which medium the speed of sound is more: humid air or dry air? Give a reason to your answer. 

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Solution 1

Speed of sound is more in humid air because in presence of moisture, the density of air decreases and sound travels with greater speed. 

`"V" ∝ 1/sqrt("ρ")`

Solution 2

The speed of sound is more in the humid air as compared to dry air. Because the air moisture decreases the density of air and speed of sound is inversely proportional to the density of air. So, sound travels faster in the humid air.

Concept: Comparison of Sound with Speed of Light
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APPEARS IN

Selina Concise Physics Class 9 ICSE
Chapter 8 Propagation of Sound Waves
Exercise 8 (A) | Q 33 | Page 183
Frank Class 9 Physics ICSE
Chapter 7 Sound
Production and Propagation of Sound | Q 9 | Page 278
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