Gamma rays have the shortest wavelengths and highest frequencies of all electromagnetic waves. Gamma rays have more energy than any other electromagnetic waves, because of their extremely high frequencies.
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Gamma rays have frequencies greater than about 10^19 cycles per second , or hertz (Hz), and wavelengths of less than 100 picometers (pm), or 4 x 10^9 inches. (A picometer is one-trillionth of a meter.)
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