the electromagnetic spectrum. ============================
Wavelength is just a length so you can have wavelengths of any length. Gamma rays are the shortest and are typically .00000000001 meters long (or 10^-12 m). Visible light is around .000001 meters (or...
The higher the frequency, the shorter is the wavelength. frequency/wavelength=speed of the wave The speed in vacuum is the speed of the light.
visible light
Will have a high frequency f=c/w.
For any wave: wavelength x frequency = speed Speed of light, in this case.