# Difference between revisions of "Frequency"

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imported>Anthony Argyriou (create stub) |
imported>Howard C. Berkowitz |
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'''Frequency''' is a property of an oscillation, [[vibration]], or other regularly-repeating phenomenon. The frequency of such a phenomenon is the number of repetitions in a unit [[time]]. In the [[SI]] system of units, frequency is measured in [[Hertz]] ('''Hz'''), the number of repetitions in one [[second]]. | '''Frequency''' is a property of an oscillation, [[vibration]], or other regularly-repeating phenomenon. The frequency of such a phenomenon is the number of repetitions in a unit [[time]]. In the [[SI]] system of units, frequency is measured in [[Hertz]] ('''Hz'''), the number of repetitions in one [[second]]. | ||

Frequency is inversely proportional to [[wavelength]], which is a length measurement. :<math>\lambda = \frac{c}{f} \,\!</math> , | |||

:<math>E=hf \,\!</math> , | |||

where c = 299,792,458 m/s (the [[speed of light]]) and h = 6.626 x 10<sup>-34</sup> Js ([[Planck's constant]]) |

## Revision as of 11:49, 28 September 2008

**Frequency** is a property of an oscillation, vibration, or other regularly-repeating phenomenon. The frequency of such a phenomenon is the number of repetitions in a unit time. In the SI system of units, frequency is measured in Hertz (**Hz**), the number of repetitions in one second.

Frequency is inversely proportional to wavelength, which is a length measurement. : ,

- ,

where c = 299,792,458 m/s (the speed of light) and h = 6.626 x 10^{-34} Js (Planck's constant)