A laser light travels at the speed of light, #300,000# #kms^-1#, and has a wavelength of #580# #nm#. What is its frequency?
1 Answer
Oct 24, 2017
The frequency of this light is
Explanation:
First we need to change the units into SI units: metres and metres per second:
The general equation for waves is:
We can rearrange this to make the frequency the subject: