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photon comparison table
Subject has frequency has acronym has wavelength has synonym has definition
gamma ray3 EHz or more 100 pm or lesselectromagnetic radiationPhoton of very high frequency (wavelength shorter than a few tenths of an angstrom); the most energetic form of electromagnetic radiation, although there is no sharp boundary between γ-ray photon and an X-ray photon. Usually γ-ray photons come from the nucleus and X-ray photons come from the inner orbital electrons. Galactic γ-ray photons seem to originate primarily in the spiral arms.
infrared3 THz to 430 THzIR700 nm to 100 μmelectromagnetic radiationThe region of the electromagnetic spectrum from a wavelength of about 1 μm (10-6 m) to about 200 μm. The region from 1 to 5 µm is the near infrared: 5-30 is the mid infrared and 30-200 µm is the far infrared.
microwaveinversely proportional to the wavelength inversely proportional to its momentumelectromagnetic radiationRadio radiation with wavelengths of about 10-4 to 1 meter, equal to 109 to 1013 hertz.
optical430 to 750 THz 400 to 700 nmlightElectromagnetic radiation with wavelengths of or close to those detectable by the eye.
radio3 GHz or less 10 cm or moreelectromagnetic radiationElectromagnetic radiation with the lowest energy and longest wavelength. Unlike visible light, radio waves penetrate dust and can be detected from throughout the Galaxy.
ultraviolet750 THz to 30 PHzUV10 to 400 nmelectromagnetic radiationElectromagnetic radiation "beyond the violet" with wavelengths in the approximate range 100-4000 Å.
X-ray30 PHz to 3 EHz 100 pm to 10 nmelectromagnetic radiationA large band of electromagnetic radiation with wavelengths smaller than extreme ultraviolet light. A typical X-ray photon has over one thousand times as much energy as a photon of visible light.

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