Author Question: The energy of a proton is 1.0 MeV below the top of a 6.8-fm-wide energy barrier. What is the ... (Read 26 times)

bobthebuilder · **on:** Jul 29, 2018

The energy of a proton is 1.0 MeV below the top of a 6.8-fm-wide energy barrier.

What is the probability that the proton will tunnel through the barrier? (1 eV = 1.60 10-19 J,
mproton = 1.67 10-27 kg, h = 1.055 10-34 J s, h = 6.626 10-34 J s)
A) 0.051
B) 0.048
C) 0.056
D) 0.053

Question 2

A 3.10-eV electron is incident on a 0.40-nm barrier that is 5.67 eV high. What is the probability that this electron will tunnel through the barrier?

(1 eV = 1.60 10-19 J,
mel = 9.11 10-31 kg, h = 1.055 10-34 J s, h = 6.626 10-34 J s)
A) 1.4 10-3
B) 9.0 10-4
C) 1.0 10-3
D) 1.5 10-3
E) 1.2 10-3