If you are referring to the crests of a wave then the distance is called the wavelength ( λ)
wavelength
That is the wavelength.
That is the wavelength.
The wavelength
wavelength
That is the wavelength.
Wavelength
wavelength
That is the wavelength.
wavelength
That is the wavelength.
Wavelength
That is the wavelength.
The wavelength
wavelength
If you measure the distance between any two successive or consecutive crests in case of transverse wave is called the wavelength. If we get the distance between any two crests that will be definitely an integral multiple of the wavelength. The same in case of longitudinal waves. The distance between two successive rarefactions is known to be the wavelength.
wavelength