Question

1. The number of waves per unit length is called​

Answer 1

Answer:

Explanation:In the physical sciences, the wavenumber (also wave number or repetency) is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance. Whereas temporal frequency can be thought of as the number of waves per unit time, wavenumber is the number of waves per unit distance

Answer 2

Wave number is the number of wave per unit