How does the speed of a photon compare to the speed of an EM wave?

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1220414

2026-07-10 19:35

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Wave length of gamma rays is 10 raised to the power of minus 12. It means that you have 10 raised to 12 waves in case of gamma rays/ meter. Wave length of radio wave is 10 raised to 3. So there is difference of '12' zeros between both of them. But the speed of electromagnetic wave is about 300,000,000 meters/ second. It means that photon travels about 300,000,000 meters/second. So the actual distance traveled by photon in case of radio wave is little more than 300,000,000 meters. So in case of gamma rays the distance traveled by photon is 1,000,000,000,000 *1000 = 1000,000,000,000,000 times that of radio wave per second.

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