An 80 eV electron impinges upon a potential barrier 100 eV high ...

[jerry coleman]

An 80 eV electron impinges upon a potential barrier 100 eV high and 0.2 nm thick. What is the probability the electron will tunnel through the barrier?
 
  A)
 
  10
  B)
 
  1.0
  C)
 
  0.10
  D)
 
  1.1 x 10-4  
  E)
 
  7.7 x 10-10

Question 2

According to the selection rules, which of the following transitions is not allowed?
 
  A)
 
  n = 3,  = 2 to n = 2,  = 1
  B)
 
  n = 4,  = 3 to n = 3,  = 2
  C)
 
  n = 3,  = 1 to n = 1,  = 0
  D)
 
  n = 2,  = 1 to n = 1,  = 0
  E)
 
  n = 4,  = 2 to n = 3,  = 2

[Hikerman221]

Answer to Question 1

D

Answer to Question 2

E

[jerry coleman]

YES! Correct, THANKS for helping me on my review

[xiaomengxian]

Thanks for the timely response, appreciate it