Homework Assignments

Physics 205 - Modern Physics - Fall 2012

Referring to on-line solutions is a violation of the Honor Code

Assignment
Due Date
Problems
1
Thursday, Sept. 13
Ch.1 Prob's 4, 6, 8, 11, 13, 16
2
Monday, Sept. 17

Ch. 1 Prob's 18, 22, 27, 30, 34, 51

Ch. 2 Prob's 3, 4

3
Thursday, Sept. 20

5th Ed: Ch. 2 Prob's 7, 9, 15, 17, 31, 39, 48
4th Ed: Ch. 2 Prob's 7, 9, 15, 17, 31, 39, 47

Note for prob.9: 200GeV is the total E, not the KE.

4
Monday, Sept. 24

Ch. 3 Prob's 3, 6, 12, 15, 21, 25, 26

Problem numbers the same in both editions.

5
Thursday, Sept. 27

Ch. 3 Prob's 32, 34, 35, 36, 37, 41
Ch. 4 Prob's 1, 6

Problem numbers the same in both editions.

6
Monday, Oct. 1

Ch. 4 Prob's 10, 13, 16, 22, 27, 29

Problem numbers the same in both editions.


Thursday, Oct. 4
Ch. 5 Prob's 4, 6, 8, 14, 19, 20

Problem numbers the same in both editions.

     Exam 1 - Friday, Oct. 5
7
Monday, Oct. 8

No Assignment

8
Thursday, Oct. 11

Ch. 5 Prob's 23, 24, 27, 31, 35

4th Edition: same except replace 35 with 34.

9
Monday, Oct. 15

5th Ed: Ch. 6 Prob's 2, 3, 6, 9, 10, 19, 21

4th Ed: Ch. 6 Prob's 2, 3, 6, 9, 20, 18, 20

10
Thursday, Oct. 18

5th Ed: Ch. 6 Prob's 23, 28, 32, 43, 48

4th Ed: Ch. 6 Prob's 22, (Problem A, see below), 31, 41, 46

Problem A: Compute the expectation value of the x component of the momentum of a particle of mass m in the n=3 level of a one-dimensional infinite square well of width L. Reconcile your answer with the fact that the KE of the particle in this level is 9p2hbar2/2ML2.

Extra Credit: A finite square well has depth 13.6eV and width 10-10m. Find the number of bound states it will have and the energy of the lowest state in eV. Use of MMA is ok, but print out any MMA results you use.

11
Monday, Oct. 22

Ch. 7 Prob's 1, 2 (Both editions)

Extra Credit: The Schrödinger Eqn is non-relativistic. If one considers corrections for the effects of relativity for the electron in a one-dimensional infinite square well, are the energy levels slightly higher, slightly lower, or unchanged from the nonrelativistic result? Come up with a convincing argument to support your answer.

12
Thursday, Oct. 25
Ch. 7 Prob's 9, 12, 17, 19, 20, 25 (Both editions)
13
Monday, Oct. 29
Ch. 7 Prob's 32, 33, 43 (lowest, not slowest), 44, 47, 55
(Same both editions)
14
Thursday, Nov. 1
Ch. 9 Prob's 2, 5, 12, 16, 20, 28 (Both editions)
Exam 2 - Friday, Nov. 2
15
Monday, Nov. 5
No Assignment

Thursday, Nov. 10
Ch. 11 Prob's 2, 8, 9, 10, 18, 24, 26, 29, 36 (Both editions)

16
Monday, Nov. 12

Have read on web site, Chapter 11 Mössbauer Effect.

Read Chap. 12 Sections 1-3.

17
Thursday, Nov. 17

5th Ed: Ch. 12 Prob's 5, 6, 9, 12, 15, 17, 25, 29, 30

4th Ed: Ch. 13 Prob's 4, 5, 9, 10, 13, 14, 22, 26, 27


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