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"Microwave" is the term used to refer to radio waves with frequencies above 3 GHz (3,000 MHz).

Just like radio waves at lower frequencies, microwaves are used primarily for communication, and are generated in basically the same way.

The use of the title for the "microwave" oven is somewhat illegitimate, since those appliances operate at frequencies near 2.5 GHz, which is not formally part of the "microwave" portion of the spectrum.

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15y ago

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