Asked by schoolgirl

Calculate the wavelength of a proton with energy 2.45eV.

in meter plz
Answered by DrBob222
2.45 ev x (1.6E-19 J/ev) = ?J
?J = hc/wavelength
Answered by School girl
I did it but it was wrong! :(
Is the answer in meter?
Answered by School girl
I've got 5.05401530612e-07 but it's wrong :(
Please help...
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