For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E = 766 eV and the potential step has a height of U, = 575 eV. What is the angular wave number in (a) region 1 and (b) region 2? (c) What is the reflection coefficient? (d) If the incident beam sends 5.61 x 105 electrons against the potential step, approximately how many will be reflected? Ve0 region 1 region 2 (a) Energy ---E. Electron (b)
For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E = 766 eV and the potential step has a height of U, = 575 eV. What is the angular wave number in (a) region 1 and (b) region 2? (c) What is the reflection coefficient? (d) If the incident beam sends 5.61 x 105 electrons against the potential step, approximately how many will be reflected? Ve0 region 1 region 2 (a) Energy ---E. Electron (b)
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Transcribed Image Text:For the arrangement of Figure (a) and Figure (b),
electrons in the incident beam in region 1 have
energy E = 766 eV and the potential step has a
height of U1 = 575 eV. What is the angular wave
number in (a) region 1 and (b) region 2? (c) What is
the reflection coefficient? (d) If the incident beam
sends 5.61 x 105 electrons against the potential
step, approximately how many will be reflected?
V= 0
V<0
region 1
region 2
(a)
Energy
---E•
Electron
(b)
(a) Number
Units
(b) Number
Units
(c) Number
i
Units
(d) Number
Units
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