# Frequency Formula

Frequency refers to the total number of revolutions or wave cycles per second. The Formula for period (T) in terms of frequency is given by

$f=\frac{1}{T}$

If we consider any wave in terms of velocity and wavelength the Frequency Formula is given by

$f=\frac{V}{\lambda}$

Where f is the frequency of the wave,

V is the wave velocity or wave speed,

$\lambda$ is the wavelength of the wave.

If light wave is considered then frequency is given by

$f=\frac{C}{\lambda}$

Where C is velocity of light.

Frequency in terms of angular frequency is given by

$f=\frac{\omega}{2\pi}$

Where $\omega$ is the angular frequency.

The formula for frequency of a wave is used to find frequency(f), time period(T), wave speed (V) and wave length ($\lambda$). The Frequency is expressed in **Hertz (Hz)**.

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