Question

How do the following factors affect, if at all, the speed of sound in air :

(i) the frequency of sound,

(ii) the temperature of the air,

(iii) the pressure of air,

(iv) moisture in the air?

Answer 1

(i) The frequency of sound has no effect on the speed of sound.
(ii) The speed of sound increases with the increase in the temperature of sound.
(iii) The pressure of sound has no effect on the speed of sound.
(iv) The speed of sound increases with the increase in presence of moisture in the air.