what do you understand by radio wave
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Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared light. Radio waves have frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz (Hz). ... Radio waves are generated artificially by transmitters and received by radio receivers, using antennas.
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Radio wave are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum longer than infrared rays....
Naturally occurring radio waves are emitted by lightning and astronomical objects.....
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