Question

What evidence can you give that the speed of sound in air does not depend significantly on frequency?

Short answer

Consider the example of the orchestra; the higher notes and lower notes can be distinguished. Therefore, for larger distances, this difference cannot be heard.

Therefore, if the distance is larger, the sound is independent of frequency.

Step-by-step solution

Variables on which the speed of the wave depends

The speed of the wave does not rely on the wave's frequency. The change in frequency affects the wavelength of the wave. The speed of the sound depends on the tension in the string and the density of the medium.

Example that illustrates the speed of sound in the air does not depend significantly on frequency

When chords are played in the orchestra, the higher notes are audible at one time and the lower notes at another time. For larger distances, this difference cannot be heard.

It shows that for a large distance, the sound in the air does not depend on frequency.