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OpenStudy (anonymous):
Need help, Calculate the wavelength of a proton with energy 2.45eV.
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OpenStudy (anonymous):
E = hv E = h c/ wavelength wave-lenght = hc/E
OpenStudy (anonymous):
1eV = 1.6*10^-19 J
OpenStudy (anonymous):
trick always remember dat hc=2 x 10^-25 it will make ur calculation easy
OpenStudy (anonymous):
I can't get the right answer in meter... Please help :(
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