Question

Which factors does not affect the speed of sound

Answer 1

The following factors affect the speed of sound in the following mans:
(i) Frequency of air - Speed of sound is not affected
(ii) Temperature of air - speed of sound increases with an increase in the temperature
(iii) Pressure of air - Speed of sound is not affected
(iv) Moisture in air - Speed of sound increases with an increase in the moisture level in air

Answer 2

Pressure, amplitude, wavelength and frequency are not affect the speed of sound.  

Explanation:

• Frequency does not affect the speed of sound. If the frequency of the sound wave in a medium is increased, it causes decrease in its wavelength so that the speed of sound wave remains constant.
• On the other hand factors like temperature, humidity changes the density of the particles in the medium, which causes the change in speed of the sound wave. Also, the speed of sound increases or decreases according to direction of wind.