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'''Radio waves''' are a part of the electromagnetic spectrum. They typically defined as having wavelengths longer than about a centimetre, though this value depend on the definition. Therefore radio waves have the longest wavelength and lowest energy of any type of electromagnetic radiation. They are generally used for communication.
'''Radio waves''' are a part of the electromagnetic spectrum. They typically defined as having wavelengths longer than about a centimetre, though this value depend on the definition. Therefore radio waves have the longest wavelength and lowest energy of any type of electromagnetic radiation. They are generally used for communication.
[[Category:Radio]]