Question

Define waave number

Answer 1

Explanation ⇒ The wave number is the number of the wavelength emitted per meter.

Also, Wave number may be defined as the Repetition of the waves, means how many times it repeats.

It is the Reciprocal of the wavelength.

Mathematically,

ν = 1/λ

The S.I. Unit of the wave number is m⁻¹.

There is one common relation between frequency and wave number.

We know, c = fλ

⇒ c = f/ν

Hope it helps.