H2 Physics · JC 2 · Medium · de Broglie wavelength
Electrons are accelerated from rest through a potential difference of 4.0kV. What is the de Broglie wavelength of these electrons? (Take h=6.63×10−34J s, electron mass m=9.11×10−31kg, e=1.60×10−19C.)
6.1×10−12m
1.9×10−11m
2.4×10−10m
9.6×10−13m
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