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microwave radiation

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Microwave Radiation


Electromagnetic waves with wavelengths in the range 0.3 cm to 30 cm/0.1 in to 12 in, or 300–300,000 megahertz (between radio waves and infrared radiation). Microwaves are used in radar, in radio broadcasting, in satellite communications, and in microwave heating and cooking.

In microwave cooking, microwaves are used to transfer energy to food. The frequency of the microwaves matches the natural frequency at which the water molecules in food vibrate. The vibration energy of the water molecules represents in an increase in temperature, which cooks the food.

© Research Machines plc 2008. All rights reserved. Helicon Publishing is a division of Research Machines plc.


 
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angle of reflection
colour (physics)
diffraction
diffraction grating
dispersion (physics)
echo
electromagnetic spectrum
electromagnetic waves
frequency (physics)
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hertz (science)
infrared radiation
longitudinal wave
microwave radiation
optical fibre
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prism (optics)
radio
radio wave
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refraction
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