if a wave has a frequency of 120 Hz and a wavelength of 5m, it would have a speed of 600 m/s.

Question

In one or two sentences, describe what would happen to the frequency of this wave if the wavelength is increased to 10m but the speed stays the same at 600 m/s.

Answer 1

If wavelength increases then frequency decreases by the same factor.
v = f*w
600 = 120*5
So if w = 10. then,
600 = f*10. Solve for f.