Asked by Cad

What is the energy of a 425 nm photon?
a) 2.82 x 10^-40 J
b) 1.6 x 10^-27 J
c) 4.67 x 10^-19 J
d) 4.67 x 10^-28 J

I don't get any of these answers. =S Please help...
Answered by DrBob222
E = hc/wavelength = (C)
Post your work and I'll look for the error.
Answered by Cad
Oh, I made some mistake with the values... now I got 4.67x10^-19 well actually 4.68x10^-19 but that's not in the options... is this answer right?
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