Light Wavelength and Frequency Relationship
Table of Contents
The relationship between the wavelength and frequency of light in a vacuum is:
$$ c_0 = \lambda f $$
Where
- \(\scriptsize \lambda\) is the wavelength of the light,
- \(\scriptsize c_0\) is the speed of light in a vacuum, and
- \(\scriptsize f\) is the frequency of the light.
For a medium with a refractive index of \(\scriptsize n\), the relationship is:
$$ \frac{c_0}{n} = \frac{\lambda}{n} f $$
That is to say, the speed of light and wavelength change in a medium, but the frequency remains the same.