Multiple Choice
If an electron has a wavelength of 0.123 nm,what is its kinetic energy,in electron-volts? This energy is not in the relativistic region.(melectron = 9.11 × 10-31 kg,1 eV = 1.60 × 10-19 J,h = 6.626 × 10-34 J ∙ s)
A) 19.8 eV
B) 60.2 eV
C) 80.4 eV
D) 99.5 eV
E) 124 eV
Correct Answer:

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Correct Answer:
Verified
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