How to solve for wavelength
There is the formula v = λf, where v is velocity of the wave, λ (lamda) is wavelength, and f is frequency.To solve for wavelength (λ), divide both sides by f.v = λfv/f = (λf)/fv/f = λ
wavelength is the distance of one frequency wave peak. If you know the speed and frequency of the wave you can use basic formula for wavelength which is Wavelength= Wave Speed over Frequency