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Radiowaves have the longest wavelengths in the electromagnetic spectrum, ranging from 300 GHz to 3 kHz. They can have wavelengths between 1 millimeter to 100 kilometers. Radiowaves are produced from sources like lightning, broadcast radio towers, communications satellites, and astronomical phenomena. They are used for transmitting television and mobile signals, local radio and wireless communication, radar to detect objects, and long-range communication between astronauts and probes in space and Earth.
- Author
- mugilanraj17
- Language
- EN