Posted by Beth on .
Find the wavelength (in nm) of a photon whose energy is 5.90 x 1019 J.
I understand that I have to use this equation to figure out the problem E=nhf, I just keep getting the wrong answer. Which is 33.68 nm

physics 
bobpursley,
E=hf=h c/lambda
lambda=hc/E=6.6E34*3E8/5.9E19
=3.3E7m=330nm
you do it more accurately 
physics 
Beth,
Thanks It deffinatly helped some. I also realised I was downsizing the number to much.