(i) v ∝ \(\sqrt T\), i.e., speed of sound varies directly as the square root of the temperature in kelvin.
(ii) v ∝ \(\frac{1}{\sqrt p}\) , i.e., speed of sound in a gas varies inversely as the square root of density of gas.
(iii) Sound travels faster in moist air than in the dry air.
(iv) Change in pressure has no effect on speed of sound.
(v) Wind has no effect on speed of θ is 90º. Sound travels at higher speed if θ is less than 90º and at lower speed if θ is more than 90º.
