An electron microscope operates with electrons of kinetic energy 100 keV.What is the wavelength of these electrons? Assume this speed is not relativistic.(h = 6.63 × 10−34 J⋅s,c = 3.00 × 108 m/s,1 eV = 1.60 × 10−19 J,and me = 9.11 × 10−31 kg)
A) 5.49 × 10−12 m
B) 7.14 × 10−11 m
C) 9.28 × 10−10 m
D) 3.88 × 10−12 m
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