# frequency derivations

frequency from wavelength

symbol

description

unit

variable name

\(c\)

speed of light

\(\frac{m}{s}\)

\(\lambda\)

wavelength

\(m\)

wavelength {:}

\(\nu\)

frequency

\(Hz\)

frequency {:}

The pattern : for the first dimensions can represent {spectral}, {time}, {time,spectral}, or no dimensions at all.

\[\nu = \frac{c}{\lambda}\]frequency from wavenumber

symbol

description

unit

variable name

\(c\)

speed of light

\(\frac{m}{s}\)

\(\nu\)

frequency

\(Hz\)

frequency {:}

\(\tilde{\nu}\)

wavenumber

\(\frac{1}{m}\)

wavenumber {:}

The pattern : for the first dimensions can represent {spectral}, {time}, {time,spectral}, or no dimensions at all.

\[\nu = c\tilde{\nu}\]