গিগাহার্জ শব্দটার উৎপত্তি কোথা থেকে ?
In English, "hertz" is also used as the plural form. As an SI unit, Hz can be prefixed; commonly used multiples are kHz (kilohertz, 10<sup>3</sup> Hz), MHz (megahertz, 10<sup>6</sup> Hz), GHz (gigahertz, 10<sup>9</sup> Hz) and THz (terahertz, 10<sup>12</sup> Hz). One hertz simply means "one cycle per second" (typically that which is being counted is a complete cycle); 100 Hz means "one hundred cycles per second", and so on. The unit may be applied to any periodic event—for example, a clock might be said to tick at 1 Hz, or a human heart might be said to beat at 1.2 Hz. The occurrence rate of aperiodic or stochastic events is expressed in reciprocal second or inverse second (1/s or s<sup>−1</sup>) in general or, in the specific case of radioactive decay, in becquerels. Whereas 1 Hz is 1 cycle per second, 1 Bq is 1 aperiodic radionuclide event per second.
gigahertz