65. 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
Option C Solution: 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.
