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72 bytes removed ,  20:55, May 10, 2007
not all longer than THz
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A '''Microwave''' is an [[electromagnetic wave]] with wavelength longer than those of [[terahertz]] (THz) frequencies; it has wavelength approximately in the range of 30cm (1GHz) to 1mm (300 GHz).  
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A '''Microwave''' is an [[electromagnetic wave]] with wavelength approximately in the range of 30cm (1GHz) to 1mm (300 GHz).  
 
[[category:physics]]
 
[[category:physics]]
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