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