Homework Statement
Suppose a 12.0eV electrons approach a potential barrier of height 4.2eV.
For what barrier thickness is the reflection at a maximum?
Known:
v_0=6.7*10^(-19)J
E=1.9*10^(-18)J
m=9.11*10^(-31)kg
hbar=1.055*10^(-34)J*s
(I have converted from eV to J to make the units...