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

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

If we consider any wave in terms of velocity and wavelength the

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

Where, C is velocity of light.

Frequency in terms of angular frequency is given by

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

Where, C is velocity of light.

Frequency in terms of angular frequency is given by

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)**.

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

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Below are given some problems based on frequency formula which may be helpful for you.

Given: Time taken T = 3 s,

Frequency f = ?

The frequency formula if given by f = $\frac{1}{T}$

= $\frac{1}{3}$

= 0.33 Hz.

Given: Velocity of light, V = 3 $\times$ 10

Wavelength, $\lambda$ = 500 nm

Frequency is given by f = $\frac{V}{\lambda}$

= $\frac{3 \times 10^{8}}{500 \times 10^{-9}}$

= 6 $\times$ 10