Question

Explain Wave Number.​

Answer 1

Wavenumber is the number of wavelengths in a given distance along the propagation of the wave.

How to Find-

The wavenumber (k) is simply the reciprocal of the wavelength, given by the expression. k = 1 / λ

Answer 2

$\tt\huge\purple{hello!!!}$

HERE IS UR ANSWER

$_____________________________$

Wavenumber, as used in spectroscopy and most chemistry fields, is defined as the number of wavelengths per unit distance, typically centimeters (cm−1): where λ is the wavelength. It is sometimes called the "spectroscopic wavenumber". It equals the spatial frequency