microwaves propertiess and uses
Answers
Answer:
microwaves
Explanation:
Microwaves (short-wavelength radio waves ranging from 0.1m to 1mm), with frequencies in the gigahertz (GHz) range, are produced by special vacuum tubes (called klystrons, magnetrons and Gunn diodes). Due to their short wavelengths,they are suitable for the radar systems used in aircraft navigation. Radar also provides the basis for the speed guns used to time fast balls, tennis serves,and automobiles. Microwave ovens are an interesting domestic application of these waves. In such ovens, the frequency of the microwaves is selected to match the resonant frequency of water molecules so that energy from the waves is transferred efficiently to the kinetic energy of the molecules. This raises the temperature of any food containing water.
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Answer:
microwaves make the food hot when its too cold
Explanation:
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