Velocity of sound in air does not depend on
A). Density of air
B). Temperature of air
C). Pressure of air
D). Humidity of air
Pressure of air
Assuming air to be an ideal gas, the speed of sound depends on temperature only. As air temperature increases, so does the speed of sound and vice versa. The speed of sound is completely independent of air pressure because the air pressure and air density are proportional to each other at the same temperature.
1. Which of the following principle is used to produce low temperatures
2. The light of distant stars is affected by
3. What type of lens is used to correct vision of a person suffering from Myopia?
4. Which of the following is not caused by atmospheric refraction of light ?
5. Convex mirrors are used as a rear view mirror in motor cycles because
6. Photosynthesis takes place faster in
7. When pressure is increased the melting point of ice
10. It takes much longer to cook food in the hills than in the plains, because