Question

Relation between speed. Velocity and frequency

Answer 1

Relationship between velocity, wavelength and frequency is

$v = f w$

where w=wavelength

Answer 2

Hey mate!

I am here with your answer!

Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. The equation that relates wavelength and frequency for electromagnetic waves is: λν=c where λ is the wavelength, ν is the frequency and c is the speed of light

Hope this will help you!