Question
What would be the effect of pressure on the velocity of sound? Explain.
Solution
If pressure is increases at a constant temperature, the density will also increase such that P/ ρ remains constant.
That is,
At constant temperature P/ρ is constant.
Therefore, the velocity of sound, vs is also constant.
Thus at constant temperature velocity of sound is independent of pressure.
That is,
At constant temperature P/ρ is constant.
Therefore, the velocity of sound, vs is also constant.
Thus at constant temperature velocity of sound is independent of pressure.
