Question

The velocity of sound is not affected by
change in
(1) Temperature
(2) Medium
(3) Pressure
(4) Wavelength​

Answer 1

Answer:

pressure is the correct answer

Answer 2

Explanation:

Change of medium and change of temperature do affect the velocity of sound. Change in wavelength does not. Further, there is no effect of change in pressure on velocity of sound, provided temperature remains constant.