# How can I calculate the frequency of light?

Mar 25, 2018

Well, we must have the wavelength, $\lambda$?

#### Explanation:

We know from fyziks that $\text{speed"="wavelength"xx"frequency}$.

Or ${c}_{\text{the speed of lite"=lambda_"wavelength"xxnu_"frequency}}$

And thus $\nu = \frac{c}{\lambda}$...the which quotient has units of...

$\frac{m {s}^{-} 1}{m} = {s}^{-} 1$...i.e. units of frequency....