M Dec 18 
Here is the summary gradesheet
for the class, posted anonymously by CPS number. On the whole, they
aren't too dissimilar from the earlier projections. The final exams have
been graded and may be picked up in my office (Room 26, P&A building).
I'll be in today until at least 4 p.m. I expect to be in most other days
this week as well on a catchascatchcan basis. The extra credit portion
of everyone's grade has increased because on the earlier gradesheet I
erroneously counted only 0/1 for CPS incorrect/correct responses instead
of 0/1/2 for CPS no/incorrect/correct responses.
I know each and every one of you put a lot of effort into this course, and
I'm proud of you for that. The subjects we covered are very difficult and
sometimes counterintuitive. For those of you continuing your physics
studies, this is just the tip of the iceberg of a fascinating journey. For
those of you for whom this is a terminal physics course, I hope you have
learned that even the most bizarre phenemona can be tackled with a
rational problemsolving approach. Best wishes to you all and have a happy
holiday season.

M Dec 11 
I've had some emails asking me, "What resource materials are allowed
for the final exam?" To remind everyone what I said in class, I'm writing
it down here. You can bring a SINGLE 8.5" x 11" piece of paper, with
writing on both sides if you so desire, to the exam. You may also bring a
ruler, but rulers will be provided if you don't have one. The same goes for
pens/pencilsextras will be available at the exam if yours breaks for some
reason. What you cannot use during the exam is either a calculator or a
cell phone. If you use either one of these on the final, you will get a
zero for the exam. The exam consists of eight questions surveying the
entire course, one of which I announced on the last day of class. My best
recommendation for studying is to do practice problems, especially in the
areas you had a hard time with during the midterm exams.

F Dec 8 
Here is an outline review
of the main topics we discussed in the course. We will go over it in
class today.

Th Dec 7 
The solutions to exam 3 are now
available on the course website. Please take the time to review the
solutions to all actual and sample exams as well as all the problem
sets as you prepare for the final exam. I reposted a few of them recently
to correct some typeos here and there so you may want to download the
most recent versions.

Th Dec 7 
Here is a summary
gradesheet, histograms, and detailed problem set
gradesheet for the course, posted by CPS number. Please verify that all
the individual information is complete and correct. To arrive at a total
current grade, I assumed a grade on the final exam equal to the average of
the first three midterms. Exams will be returned in class tomorrow.

Th Dec 7 
Graded problem set 12 has been returned to your mailbox outside the
lecture hall and exam 3 has been graded. I will post an anonymous complete
list of grades for the entire course so far soon with an estimate of final
grades, assuming that final exam performance is equal to the average
performance of the three midterm exams. Solutions to exam 3 will be posted
soon as well.

W Dec 6 
Here are some links to quantum well and tunneling demos. STM images from nobel.org,
a Java Applet from
France and a Java Applet from
Colorado.

M Dec 4 
During final exam week, I will be holding extended office hours. They
will be in my P&A office, room 26 at the following times: Monday 122
p.m., Wednesday 121 p.m., Thursday 24 p.m. If you have any questions,
please take the opportunity to stop by.

Th Nov 30 
Solution
Set 12 and a repost of Solution Set 11 (with
corrections) are now on the course website to assist you in studying
for the midterm exam. Please take the time to read through
them, and more importantly to do the sample exam.

T Nov 28 
I reposted the sample midterm
exam 3 and the corresponding solutions because they
contained some mistakes that I corrected realtime during the review
session. I guess that's what happens when I rush a writeup over a
couple of slices of pizza at Saggio's. Everything should be correct now.

Su Nov 26 
Here is a listing of the
grades for exams 1 & 2 and problem sets 19, posted anonymously
by CPS number. Please check your records and let me know if there are
any incorrect entries.

Su Nov 12 
Problem set 10 clarification: Because the normal to the Earth's surface is
taken to be radially outwards in problem 10.3 a, the flux of the Sun's
radiant power striking the Earth is negative. The minus sign should be
associated with the power itself, not the area you are asked to calculate in
this problem. So please report a positive area for this question. I
reworded the problem so that the minus sign was pulled out of the integral
to make this point clearer.

Th Nov 9 
In my haste to cut and paste data from the two columns of my spreadsheet
containing the exam 2 grades in four sidebyside columns so that it would
conveniently be all on one page, I accidentally shifted the grades relative
to the CPS numbers by two after CPS number 31. I have reposted the grade table in a long two page
document without making any attempts to make it look nice. Just be sure to
read on to page two if you don't see your CPS number on the first page.

Th Nov 9 
Here is a histogram of the
(scaled) scores on the relativity midterm exam. Here is a more detailed
grade listing, posted anonymously by CPS number.
Midterm exams will be returned in class on Friday. Also, remember that
there is a problem set assigned this week, Problem Set 10.

M Nov 6 
Here is a selected history of
the photoelectric effect. Much is left out, but some highlights
are there.

M Oct 23 
I added the diagram to problem 8.2 and fixed a
minus sign error in problem 8.1b this weekend, along with
a couple of spelling errors. Everything else with Problem Set 8 is fine.

M Oct 16 
Two minor typeo corrections for Problem Set 7: In problem 7.1 a,
it now correctly says that 8c is equal to the distance traveled by the
Enterprise in the original IRF divided by the proper time passed on
the Enterprise, rather than the proper time passed on the Enterprise
divided by the distance it travels as measured in the original IRF.
Sorry for the confusion! Also, in problem 7.3 b, event 5 should be "Light
from event 4 reaches Arthur," not "Light from event 3 reaches Arthur."
Event 3 is itself light reaching Arthur, so clearly there was a typeo here.

Th Oct 12 
I updated Problem Set
7 with a few corrections:
Now the problem numbers are correct, a typeo in a number in the first table
of problem 7.4 has been corrected, and the hyperbola diagram for you to
trace over for problem 7.4 has been added.

W Sep 27 
Here is a link to Einstein's famous E = mc^2 paper
from 1905. Here it is in English. The
title of the paper is "Does the inertia of a body depend on its energy
content?" and was published exactly 101 years ago today.

Su Sep 24 
Some students have asked me how their problem set
scores stand in relation to the overall class performance. Here is a
PDF of a histogram of problem
set grades for the course so far, based on the first three problem sets.
With the lowest grade dropped (as will be the courseend policy, stated
below), the median is 60% whereas without the lowest grade dropped,
the median is 49%. The corresponding means are 54% and 46%. From the
overall look of the histogram, I'd say that if you are doing 45% or
better on your best two problem sets, you are keeping pace. In any
event, homework is only a small portion of your overall grade so don't
fret too much about this. Some of you have extra credit of up to 5%
to add to your overall grade as well.

F Sep 22 
Here is an egregious link to some freaky optical
illusions generated using spatial frequency filters, the kind you get using
the diffraction ideas we talked about in class. Watch out for freaky catlady!

Th Sep 21 
The practice optics midterm
solutions are now posted. To get the most value out of this
resource, spend the time going through the sample midterm yourself before
looking at the solutions; don't just check after you work each problem.

Th Sep 21 
I've posted a sample exam for you use to help you
prepare for the optics midterm. I'll post solutions before the weekend.
For those attending the review on Sunday, please work through these so
we can talk about them.

W Sep 20 
I've posted notes on reflection and
transmission and coherence
that are not in the textbook but were covered in lecture. I've also posted the
first page of the first
midterm exam (on optics) which contains the instructions for the exam. If you read them
ahead of time, you'll save yourself some time on exam day!

M Sep 18 
I've posted the next (short) Problem Set 5
early in case you'd like extra time to work on it. It is only two
problems and is due on W Sep 27, after the exam.

T Sep 14 
Here's a link to a Wave Applet to help you visualize
some of the concepts we will be talking about.

W Sep 13 
Homework Extension: Problem set 3 is now due on
F Sep 15. Problem set 4 assigned today is still due on W Sep 20.

Th Sep 7 
Part (e) of question 3.6 in
Problem set 3 has been simplified.

M Sep 4 
As mentioned in class, I will be holding special
office hours this week because of the holiday. My office hours will be in
Regener Hall 114 on Tuesday, Sep 5, from 9:30 a.m.  10:30 a.m.

T Aug 29 
Notes from Lecture 4, covering the proof that EM waves are
transverse and have orthogonal E and B fields posted. (See below.)

M Aug 28 
Summary of all of physics
circa 1905 posted. (See
below.)

T Aug 22 
TA office hours and SI session moved to RH 111. Ph
262L dates corrected to W/Th. Explicit extra credit formula added. Problem set 1 has been posted to this website (see below).
