Advertisements
Advertisements
Question
In which medium the speed of sound is more: humid air or dry air? Give a reason to your answer.
Advertisements
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.
APPEARS IN
RELATED QUESTIONS
Distinguish between loudness and intensity of sound.
Fill in the blank.
We can hear sounds of frequency in the range of _______
What do you mean by a vibratory motion?
On what factor does the loudness of a sound depend ?
Is pitch same as frequency?
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.

The speed of sound in air at 0°C is nearly :
The separation between two consecutive crests in a transverse wave is 100 m. If wave velocity is 20 m s-1, find the frequency of wave.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
