Homework

• Homework 8, due June 5: Special Relativity

• Homework 7, due May 28: Radiation (solutions)

• Homework 6, due May 21: Waves, Fields, Radiation (solutions)

  • Correction: Problem 2: the beginning of line 9, “(or $y$)” → “(and $y$)”.—5:16PM, May 19, 2015

  • Correction: Problem 2: (3) $\tilde \epsilon = 0$ → $\tilde \varepsilon = 0$.—3:50PM, May 18, 2015

• Homework 5, due May 7: Group velocity, Wave guide, Guage transformation (solutions)

• Homework 4, due Apr 30: Electromagnetic waves (solutions)

  • Change: Problem 4: Screening time → Dissipation time.

• Homework 3, due Apr 23: Waves (solutions)

  • Change: Problem 3 is now worth 10 points, not 5 points.

• Homework 2, due Apr 16: Conservation, Waves (solutions)

• Homework 1, due Apr 9: Conservation principles (solutions)

  • Change: Problem 3 is moved over to Homework 2, since technically we did not cover the angular momentum, yet. However, do not worry if you had already done this problem. The TA will be able to grade it already. So, you can submit your solution for problem 3 this week or the next week, and the grade for it will be applied to homework 2.

Quiz

• Quiz 1, Apr 16: Conservation principles (solutions) (Grading Rubric)

Midterm exam

• Here is a histogram of the midterm scores (looks like a hat!; these are adjusted scores, not raw scores).

  • 
• Here is a note on the grading by the TA.

  The grading scheme was as follows:
  
  1a - 15 pts
  1b - 10 pts
  1c - 10 pts
  1d - 15 pts
  
  2a - 15 pts
  2b - 20 pts
  2c - 15 pts
  
  As for other important rubric bits, the only thing that really stands out is that for part A of the first problem, if they didn't define their k-vector, they lost points, but then if they later defined it then I gave them the points for it there. It didn't happen often, but points for part A of the first problem are spread out for a handful of students.

• The exam and its solutions.—1:49PM, May 12, 2015

  • Addition: page 4, a note on the vector potential.—4:48PM, May 12, 2015