Radio waves are electromagnetic waves with wavelengths of 1 millimeter or more . . . frequencies of 300 GHz or less.
Answer: Radio waves are invisible rays that only radio telescopes can detect.
Radio waves are a form of electromagnetic radiation with wavelengths from 1 mm to 100 km and frequencies between 300 GHz to 3 kHz. They are produced both naturally and artificially, and they play a crucial role in various communication technologies. Different frequencies of radio waves have specific characteristics that affect how they travel through the Earth's atmosphere.
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