Chapter 38, Problem 071 For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E = 823 eV and the potential step has a height of U, = 617 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 5.29 × 105 electrons against the potential step, approximately how many will be reflected? V = 0 V< 0 x= 0 region 1 region 2 (a) Energy --E+ Electron U (b)
Chapter 38, Problem 071 For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E = 823 eV and the potential step has a height of U, = 617 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 5.29 × 105 electrons against the potential step, approximately how many will be reflected? V = 0 V< 0 x= 0 region 1 region 2 (a) Energy --E+ Electron U (b)
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Transcribed Image Text:Chapter 38, Problem 071
For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E
has a height of U1
= 823 ev and the potential step
= 617 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 5.29 x 105 electrons against the potential step, approximately how many will be reflected?
V= 0
V< 0
x = 0
region 1
region 2
(a)
Energy
--E-
Electron
(b)
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