Wavenumber Calculator

Calculate Wavenumber (u)

What is a Wavenumber?

A wavenumber is defined as the inverse of the wavelength of a wave. It represents the number of waves per unit length.

Formula

The formula to calculate the wavenumber (u) is:

\[ u = \frac{1}{\lambda} \]

Where:

Example

Let's say the wavelength (λ) is 0.5 meters. Using the formula:

\[ u = \frac{1}{0.5} = 2 \text{ m}^{-1} \]

So, the wavenumber (u) is 2 m-1.