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which of the following best explains the characteristics of radio waves?
A.Radio waves have the longest wavelength on the EM spectrum
B.Radio waves are produced by making electrons vibrate in an antenna
С.Radio waves are used to transmit sound and picture information over long distance
D.All of the above​


Sagot :

Answer:

D.

Explanation:

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 to as low as 30 hertz. At 300 GHz, the corresponding wavelength is 1 mm; at 30 Hz the corresponding wavelength is 10,000 km.