Animation showing the electromagnetic spectrum. This shows the full range of wavelengths and frequencies for electromagnetic radiation. Visible light occupies a small portion of the spectrum, and is shown by a rainbow band, which is later expanded on. To the left is higher-energy, shorter-wavelength radiation, from ultraviolet just left of visible through X-rays to gamma rays, the highest energy radiation, which has the shortest wavelength. Decreasing in energy from visible light, first in infrared, then microwaves, then radio waves, which can attain an extremely long wavelength. |