defence exam Agniveer Vayu Group X & XY Mock Test 01/2026 Physics Waves Supersonic Speeds, Shock Waves
Which one of the following statements is NOT correct?
1
The velocity of sound in air is not affected by the change in amplitude and frequency
2
The velocity of sound in air increases with the increase of temperature.
3
The velocity of sound in air is independent of pressure
4
The velocity of sound in air decreases as the humidity increases