ASSIGNED: FRI 26 APR

DUE: FRI 03 MAY

In all problems the Mathematica output is part of your grade and must be turned in with your paper-and-pencil calculations. If I don't say to use Mathematica you can if you want to help with the calculation. However beware you will not have Mathematica on the Final Exam. Best to do it by hand and check it with Mathematica.

1. GRIFFITHS PROBLEM 5.9, PAGE 214.

2. GRIFFITHS PROBLEM 5.12, PAGE 216.

3. GRIFFITHS PROBLEM 5.16, PAGE 223.

4. GRIFFITHS PROBLEM 5.18, PAGE 229. For part b take a=A=1 and use Mathematical to plot ψ(x) between 0≤x≤a for ka=π, 2π, 3π, and 4π, and interpret the result. Hint: For these values of ka use the deBroglie formula to argue how many half-waves must fit in a unit cell of length a.

5. GRIFFITHS PROBLEM 5.30, PAGE 244.

6. GRIFFITHS PROBLEM 5.31, PAGE 245.

"Physics is very muddled again at the moment;

it is much too hard for me anyway,

and I wish I were a movie comedian

or something like that and had never heard anything about physics."

Wolfgang Pauli (1900 – 1958)