Question

16. As the frequency of a source
decreases in a given medium, the
wavelength of a periodic longitudinal wave​

Answer 1

Explanation:

However, the frequency usually remains the same because it is like a driven oscillation and has the frequency of the original source. If vw changes and f remains the same, then the wavelength λ must change. That is, because vw = fλ, the higher the speed of a sound, the greater its wavelength for a given frequency.