The electromagnetic spectrum is the collection of all possible frequencies of electromagnetic waves.
|Type of wave||Frequency range||Wavelength Range|
|Radio Waves||300 GHz to as low as 3 kHz,||1 millimeter to 100 kilometers|
|Microwaves||(0.3 to 300) GHz||1 mm to 1 m|
|Infrared||300 GHZ to 430 THz|
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