Question

The number of wavelengths per unit length is called

Answer 1

The number of wavelengths per unit length is called wavenumber

Answer 2

Answer:

In one unit of length the number of wavelengths that are present is called the wave number.

Explanation:

• We know that waves are regular crests and troughs that happened at regular interval of time and the length between the crest and trough is known as a wavelength.
• These length in one unit of length is the wave number of that particular wave.
• We know that distance in unit time is Speed and velocity of wave times the time taken gives the wavelength and inverse of this wavelength give the wave number.