Multiple Choice
If an electron has a measured wavelength of 0.832 × 10−10 m,what is its kinetic energy?
(h = 6.63 × 10−34 J⋅s,1 eV = 1.6 × 10−19 J,and me = 9.11 × 10−31 kg)
A) 7640 eV
B) 418 eV
C) 334 eV
D) 218 eV
E) 70 eV
Correct Answer:

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Correct Answer:
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