How do you find wavelength of a wave?

Answer 1

The speed of a wave equals the frequency times the wavelength (speed = frequency x wavelength). Therefore, the wavelength would equal the speed divided by the frequency. Also, the speed of a wave in a vacuum is the speed of light, c, which is a constant.

Answer 2

you can either measure it or calculate it using a formule if you know the speed and and frequency(or Period) of the wave.

Measure: measure from one spot and go along the wave until you find a spot that has exactly the same value as the previous one and the length is the wavelength.

Formula: wavelength=speed/frequency or speed X Period

Answer 3

I think,

wavelength= wavespeed ÷ frequency.

:)