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1.All electromagnetic waves travel at the same speed through space (the speed of light) 2.Gamma rays, X-rays, Ultra-violet waves, Light, Infra-red rays, - ppt download
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SOLVED: Radio waves travel at the speed of light, approximately 186,000 miles per second. How long does it take for a radio message to travel from Earth to the Moon and back? (
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geometric optics - Can an electromagnetic wave travel less than the speed of light and yet perceived by the eye as a light? - Physics Stack Exchange
Since radio waves travel at the speed of light, does that mean we will never have a quicker way of communicating with things in space? - Quora
Electromagnetic Radiation
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