Course Announcements
« PHYS221 Summer 2012
Scores posting within the hour
Fri 03Aug2012 10:16AMThe exams have been graded and uploaded into CHIP, but the software has not allowed students to see the grades yet for some reason. The exam scores as well as final grades will be able to be seen on CHIP within the hour. Graded exams are now in PHYS 144. If you wish to see your graded exam, they may be viewed there.
Exam Scores Posted
Thu 02Aug2012 11:19PMThe scores for exam 2 have been posted. The average score is 135 out of 200. If you would like to check your exam to verify the score that has been posted, they will be in the Undergraduate physics office (PHYS 144) on Friday. If there is an issue with the grading or entereing of scores, please contact me as soon as possible so that I can look into it. I will be reachable by e-mail or in my office until 2:30 on Friday.
One more correction
Wed 01Aug2012 12:31PMOne more correction - the answer to #5 on the 2011 Practice Exam is c. (D is not physically possible as all real images are inverted)
Again, apologies for any confusion. All the questions should be fixed now.
Corrections to study material
Wed 01Aug2012 11:46AMThe following e-mail was sent to all members of the class:
After reviewing some of the study material posted. The following errors were found:
1) From the 2011 Practice Exam the correct answer to #8 is A. (The text file will be corrected shortly. I accidentally worked the problem using the wrong units in a hurry)
2) The correct answer to Quiz 7 question 3 is YES. (Again in a hurry I switched the indexes of refraction when working the problem to post answers.)
Apologies if this affected your studying. Both should be corrected online now.
Please bring an ID to the exam
Tue 31Jul2012 8:28AMPlease bring your Purdue ID with you to the exam on Thursday. We will be checking ID's as exams are turned in.
Extra Help Center Hours Wednesday
Mon 30Jul2012 1:57PMThe course lecturer (Mr. Lorenz) will be in the help center from 11-1 on Wednesday to answer question you may have while studying.
Lecture for 7-30 corrected
Mon 30Jul2012 1:42PMThere were a few issues with the slides for the Nuclear Physics chapter. I apologize for this. Corrected slides are now up in the lecture section. Please contact me if there was any confusion.
Quizzes and Practice Exam Answers Posted
Thu 26Jul2012 2:59PMThe quizzes (along with answer keys) for the 2nd half of the semester have been posted to study from. Also answer keys for the Practice Exams previously posted are also now available in the Practice Exam section. The answers for Practice Exam from 2011 are in a text file. There are two problems (#8 and #17) where none of the listed answers are correct. However the text file has the correct numeric answers.
Exam 2: Date, Time, Location and Format
Mon 16Jul2012 5:15PMExam 2 will be during the scheduled final exam for this course.
Thursday Aug. 2, 3:20 - 5:20 PM
Location: EE 170
The exam will be between 15 and 20 questions.
All but one question will be multiple choice.
The other question will be to draw a ray diagram and give the properties of the resulting image.
This is a slight deviation from what was stated in the syllabus, so please voice any objections or concerns prior to the final.
Scattering Dropped
Mon 16Jul2012 4:19PMSlides on Scattering from the wave optics chapter may be ignored as there will not be time to cover it in lecture.
However, the book does provide a good explanation of the sky is blue if you are interested. (Section 25.9)
Updated Equation sheet
Mon 16Jul2012 4:06PMThe equation sheet has been updated to include magnification equations for microscopes and telescopes, which was not previously included. The present form of the equation sheet should be as it will appear on the final.
The equation sheet does not count as your one sheet of notes. You will still be allowed to bring in a sheet of notes (8 x 11, front and back) to use on the exam
Dropped Content
Wed 11Jul2012 12:39PMDue to time contraints, the section on cameras from Chapter 26 is going to be dropped from the lecture. Questions regarding cameras will be removed from homework.
Study Materials Posted
Mon 09Jul2012 4:31PMThe equation sheet used for last year's final exam has been posted under the Equation sheet section. This year's equation sheet should be the same. It can be useful to familiarize yourself with the equation sheet by using it to work homework problems.
Two practice finals (written by the instructor for the 2011 course) have also been posted under Practice finals and can be used as study tools for this year's final.
The Practice exams under important links are from many years ago. They contain similar questions but were written for a different textbook and fall semester courses that had 3 exams.
Change in Schedule
Sat 07Jul2012 11:23PMThere is a small change in the material to be covered for the week of July 9.
The revised schedule is as follows
6-9: Ch. 24, 1-4
6-11: Ch. 24, 4-8, Ch. 26, 1-4
6-13: Ch. 1-5