Author Question: An 80 eV electron impinges upon a potential barrier 100 eV high and 0.2 nm thick. What is the ... (Read 42 times)

jerry coleman · **on:** Jul 29, 2018

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