A beam of 100 eV electrons is incident upon a 150 eV, 0.5nm wide electrostatic barrier. a. What fraction of the beam get

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A beam of 100 eV electrons is incident upon a 150 eV, 0.5nm wide electrostatic barrier. a. What fraction of the beam get

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A beam of 100 eV electrons is incident upon a 150 eV, 0.5nm wide
electrostatic barrier.
a. What fraction of the beam gets through?
b. What fraction of the beam is reflected?
The energy of the electrons is increased to 200 eV.
c. What fraction of the beam gets though?
d. What fraction of the beam is reflected?
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