An electron microscope operates with electrons of kinetic energy 50.0 keV.What is the wavelength of these electrons? Assume this speed is not relativistic.(h = 6.63 x 10-34 J*s,c = 3.00 x 108 m/s,1 eV = 1.60 x 10-19 J,and me = 9.11 x 10-31 kg)
A) 9.28 x 10-10 m
B) 7.14 x 10-11 m
C) 5.49 x 10-12 m
D) 2.75 x 10-13 m
Correct Answer:
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