Physics
In which medium the speed of sound is more — humid air or dry air? Give a reason to your answer.
Sound Waves Propagation
33 Likes
Answer
The speed of sound is more in humid air.
From the relation.
V ∝ , it is clear that V ∝ i.e., the speed of sound is inversely proportional to the square root of density of the gas.
As the density of air decreases with an increase in moisture level in air hence speed of sound increases in humid air.
Answered By
19 Likes
Related Questions
Compare approximately the speed of sound in air, water and steel.
The sound of an explosion on the surface of a lake is heard by a boat man 100 m away and by a diver 100 m below the point of explosion.
(i) Who would hear the sound first — boat man or diver?
(ii) Give a reason for your answer in part (i)
(iii) If sound takes time t to reach the boat man, how much time approximately does it take to reach the diver?How does the speed of sound change with change in (i) amplitude and (ii) wavelength, of sound wave?
If you place your ear close to an iron railing which is struck some distance away, you hear the sound twice. Explain why?