Question

What is the frequency of yellow light which has a wavelength of 569 nm?

Answer 1

The frequency is related to the speed and wavelength by the formula:

`f=(v)/(\lambda)`

In this case, since we are talking of light, the speed is c which has a value of 3e8 m/s. Plugging this and the wavelength given we have:

`\begin{gathered} f=(3*10^8)/(569*10^(-9)) \\ f=5.27*10^(14) \end{gathered}`

Therefore, the frequency is:

`f=5.27*10^(14)\text{ Hz}`