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Unformatted text preview: (2) (3) The wavelength peaks in the infrared part of the spectrum. R & D 3-11 What do radio waves, X-rays, and gamma rays have in common? How do they differ? All the above are photons, part of the electromagnetic (EM) spectrum. Photons are massless particles that all travel at the speed of light in vacuum. Each photon in different parts of the electromagnetic spectrum has a different frequency and corresponding wavelength ( ). Each photon has a specific energy: . Radio waves have the longest wavelengths, lowest frequencies, and smallest energies; gamma ray waves have the shortest wavelengths, highest frequencies, and highest energies....
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- Fall '09