Sample questions for exam 2
(Difference between revisions)
Line 1: | Line 1: | ||
− | + | A particle is incident from the left with energy <math>E > V_0</math>. Compute the reflection coefficient. | |
[[Image:Steppotential.gif]] | [[Image:Steppotential.gif]] | ||
− | + | Match the figures on the left, with the appropriate one on the right | |
[[Image:Potentials_cartoon.gif]] | [[Image:Potentials_cartoon.gif]] | ||
− | Consider a particle passing over a rectangular potential barrier from left to right. Write down the general form of \Psi(x) in the three regions. The use the boundary conditions to derive 4 equations for the 5 unknown coefficients. For 10 bonus points, use these 4 equations to derive an expression for the transmission coefficient. | + | |
+ | Consider a particle passing over a rectangular potential barrier from left to right. Write down the general form of \Psi(x) in the three regions. The use the boundary conditions to derive 4 equations for the 5 unknown coefficients. For 10 bonus points, use these 4 equations to derive an expression for the transmission coefficient. |
Revision as of 18:04, 28 February 2008
A particle is incident from the left with energy E > V0. Compute the reflection coefficient.
Match the figures on the left, with the appropriate one on the right
Consider a particle passing over a rectangular potential barrier from left to right. Write down the general form of \Psi(x) in the three regions. The use the boundary conditions to derive 4 equations for the 5 unknown coefficients. For 10 bonus points, use these 4 equations to derive an expression for the transmission coefficient.