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hertz (Hz)




The derived unit of frequency in the SI system of units. One hertz is a frequency of one cycle per second. 1000 Hz = 1 kilohertz (kHz); 1000 000 Hz = 1 megahertz (MHz). The unit is named after the German physicist Heinrich Hertz who demonstrated the existence of radio waves in 1886.


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   • UNITS
   • WAVES AND WAVE PHENOMENA