Question

What is the frequency of visible light with a wavelength of 500 nm?

this is what I have so far:
v=(2.998x10^8 m/s)/(500nm)

do I need to convert 500 nm to meters? Or can I solve it like that?

Answer 1

It needs to be in meters as it's the international standard of units (S.I Units). It's not in it's proper form.

Answer 2

nm means nanometres, which is 10^-9

Answer 3

so instead of using 500 nm, use 500 * 10^-9, or 5 * 10^-7 as your wavelength. Then you should get the correct answer.