Physics 251 (Modern Physics)

plus PHY 252 (Modern Physics Lab)

Spring 2007


Instructor: Prof. Chris Jacobsen (Chris.Jacobsen@stonybrook.edu, office D-102, phone 631-632-8093).  Office hours in general: Tuesdays 12:30 - 13:30 or by appointment.  Please feel free to contact me to meet at other times!
Special end-of-semester office hours: Laboratory T.A.: Matt Durham (durham@skipper.physics.sunysb.edu), office A-103, phone 631-632-4069.  Office hours Wednesday 10-11 am, or by appointment.

Course syllabus and further information. Recitation schedule with links to homework solutions, and PHY 252 lab schedule with links to lab writeups.

Lecture schedule. Mondays and Wednesdays, 15:50 - 17:10, Physics P-130.  This is an approximate schedule; I expect to deviate from it!
Date
Subject
Monday, Jan. 22
Lecture 1: Introduction to the course.  EM waves and relativity. 
Wednesday, Jan. 24
Lecture 2: Relativity II.  Lecture give by Prof. Peter Stephens
Monday, Jan. 29
Lecture 3: Relativity III
Wednesday, Jan. 31
Lecture 4: Relativity IV; Planck and the blackbody spectrum. 
Monday, Feb. 5
Lecture 5: Photons I
Wednesday, Feb. 7
Lecture 6: Photons II, plus Röntgen and the discovery of X rays. "First impressions" book report due.
Monday, Feb. 12
Lecture 7: X rays and the Compton effect; Thomson and electrons
Wednesday, Feb. 14
Classes canceled by the university due to weather.
Thursday, Feb. 15
Extra office hours, 3:30 - 4:30 pm.  Physics D-102 or, if enough people come, D-122.
Monday, Feb. 19
Exam 1 on material through chapter 3. Equation sheet.  Previous exams: spring 2005, fall 2005, fall 2006Spring 2007 exam and solutionsHistogram of exam scores.
Wednesday, Feb. 21
Lecture 8: From plum pudding to the fly in the cathedral (Thomson to Rutherford).  Lecture given by Prof. Deane Peterson
Monday, Feb. 26
Lecture 9: Bohr to de Broglie.
Wednesday, Feb. 28
Lecture 10: Wave equations and complex notation; the Schrödinger equation for matter waves.
Monday, March 5
Lecture 11: Infinite quantum well (particle in a box).  Interpretation of wave functions.
Wednesday, March 7
Lecture 12: Heisenberg uncertainty relationship.  Quantum mechanical harmonic oscillator.
Monday, March 12
Lecture 13: Quantum averages and fluctuations.  Finite square well.
Wednesday, March 14
Lecture 14: Schrödinger equation solution for the atom
Monday, March 19
Discussion of HW 7, rather than a regular lecture. No recitation on March 20.
Wednesday, March 21
Lecture 15: Conclusion of Schrödinger solution for the atom.  Quantum statistics and the Maxwell distribution.
Monday, March 26
Lecture 16: Fermi-Dirac, Bose-Einstein, and Einstein A/B coefficients
Wednesday, March 28
Exam 2 (covering material in Chapters 5, 6, 8, and the first part of 9).  Fall 2005 exam and solutionsSpring 2005 exam and solutions. Fall 2006 exam and solutionsEquation sheet. Spring 2007 exam and solutionsHistogram of exam scores.
Monday, April 2
Spring break.  No class.
Wednesday, April 4
Spring break.  No class.
Monday, April 9
Lecture 17: Lasers.  Heat capacity. Fermi distribution.
Wednesday, April 11
Lecture 18: Solid state physics: conductors, insulators, and semiconductors.   Electronics and integrated circuits.
Monday, April 16
Lecture 19: Semiconductors; the nucleus
Wednesday, April 18
Lecture 20: Radioactive decay
Monday, April 23
Lecture 21: Radioactive decay and dating; shell and liquid drop model.
Wednesday, April 25
Lecture 22: Nuclear fission and fusion, reactors, etc. Final book report due.
Monday, April 30
Lecture 23: Nuclear weapons.
Wednesday, May 2
Discuss homework 11, and review.
Monday, May 14
17:00-19:30
Final exam (P-130): Spring 2007 final and solutions, equation sheet, histogram of exam scores, and histogram of course total scores,

Fall 2006 final and solutions, Fall 2005 final and solutions, Spring 2005 final and solutions.

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Recitation schedule
Recitations meets Tuesdays 08:20 - 09:15, Physics P-130.  Homework is due on the Wednesday.  Hand in to the same slot where you put labs, in the room on A level.
Date
Homework due
Tuesday, Jan. 23
No recitation
Tuesday, Jan. 30
Discuss homework assignment 1, which is due on Wednesday, Jan. 31.  Solutions.
Tuesday, Feb. 6
Discuss homework assignment 2: Serway problems 1.29, 1.32, 1.33, 2.9, 2.14, 2.15, 2.17, 2.19, 2.21, 2.22.  Solutions.
Tuesday, Feb. 13
Discuss homework assignment 3: Serway problems 3.4, 3.6, 3.10, 3.12, 3.15, 3.16, 3.20, 3.22, 3.25, 3.28, 3.36. Solutions.
Tuesday, Feb. 20
No recitation, since there was an exam the day before.
Tuesday, Feb. 27
Discuss homework 4 (due Wednesday, Feb. 28): Serway problems 4.3, 4.5, 4.9, 4.16, 4.20, 4.24, 4.28, 4.34, 4.43, and 5.2, 5.4, 5.9.  Solutions.
Tuesday, March 6
Discuss homework 5 (due Wednesday, March 7): Serway problems 5.13, 5.14, 5.20, 5.25, 5.26, 5.30, 5.33, 5.37, 6.6, 6.9, 6.12, 6.19.  Solutions.
Tuesday, March 13
Discuss homework 6 (due Thursday, March 15): Serway problems 6.23, 6.24, 6.28, 6.32, 6.33, 6.34. Solutions.
Tuesday, March 20
No recitation; will discuss homework in March 19 lecture.  Homework assignment 7 due Thursday, March 22: Serway problems 8.10, 8.12, 8.14, 8.16, 8.17, 8.18, 8.23, 8.25, 9.21, 9.25.  Solutions.
Tuesday, March 27
Recitation meets.  No new homework assignment; ask questions on any previous homework.  However, no organized review will be carried out, so if you have no homework questions you don't need to come.
Tuesday, April 3
Spring break; no recitation.
Tuesday, April 10
Discuss homework 8 due Thursday, April 12: Serway 10.2, 10.3, 10.6, 10.9, 10.13, 10.15, 10.19, 10.21.  Solutions.
Tuesday, April 17
Discuss homework 9, which is due Thursday, April 19: Serway 12.10, 12.11, 12.14, 12.16, 12.18, and 13.1, 13.5, 13.9.  Solutions.
Tuesday, April 24
Discuss homework 10, which is due Thursday, April 26: Serway 13.16, 13.17, 13.22, 13.26, 13.30, 13.33, 13.34, 13.41, 13.44, 13.45.  Solutions.
Tuesday, May 1
No recitation.  Instead, homework 11 (which is due on Thursday, May 3) will be discussed in the May 2 lecture.  Assignment: Serway 14.4, 14.7, 14.22, 14.24, 14.28, 14.30, 14.35. Solutions.   Special end-of-semester office hours.
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PHY 252 Lab schedule (A-133.  Section 1: Tuesdays 14:20-16:20.  Section 2: Tuesdays 18:00-20:00)  Notes on error analysis are here, and suggestions on writing lab reports are here.
Date
Homework due
Tuesday, Jan. 23
No lab
Tuesday, Jan. 30
Lab 1: Michelson Interferometer
Tuesday, Feb. 6
Lab 2: Measurement of e/m for electrons
Tuesday, Feb. 13
No lab (study for exam)
Tuesday, Feb. 20
Lab 3: Measurement of the charge of the electron
Tuesday, Feb. 27
Lab 4: The Photoelectric effect
Tuesday, March 6
Lab 5: Vibrational modes
Tuesday, March 13
Lab 6: Emission spectrum of hydrogen.
Tuesday, March 20
Lab 7: Scattering. See also comments on the data analysis.
Tuesday, March 27
No lab
Tuesday, April 3
Spring break; no lab.
Tuesday, April 10
Lab 8: Geiger counter
Tuesday, April 17
Lab 9: Radioactivity
Tuesday, April 24
Make-up lab
Tuesday, May 1
No lab
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