| Date |
Reading |
Problems |
Q&A |
| 05/15 |
Final Exam: Monday, 8:00am(!!!). |
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| 05/11 |
Review session. Bring your questions! |
Don't forget to do the online course evaluation!!!
Tentative equations help sheet for the final exam is here. |
The statistics of you current total scores (prior to the final exam) are posted below under Exam #2 Statistics. |
| 05/09 |
TSK Ch.15: |
Ch15: Pr. 15.5,7,12. |
Solutions to HW4 can be found here. |
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| 05/04 |
TSK: Ch.14 and Ch.15: 15.4, 15.6.
| Ch.14: Ex. Pr: 14.4. Using your calculator find out how big the values of N should be in order for the Stirling formula to achieve 10% accuracy, 1% accuracy. |
Solutions to Exam #2 problems are posted below along with the statistics of your current grades. |
| 05/02 |
TSK: Ch.13 till the end; and Ch. 14. |
Ch.13: Qs: 13.6,13.9-11; Pr: 13.9,13.10,13.14. Your graded Homework #4 (due Tue May 9, 2017) is here. |
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| 04/27 |
Midterm exam #2 |
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| 04/25 |
TSK: Ch.12 (refresh your knowledge of probabilities); Ch.13: 13.1-13.5. The reading material can be found on the course canvas website (https://myelms.umd.edu/) under Files. In McQuarrie: Ch.3.1-3.2, and MathChapters B, E |
TSK: Ch.13: Qs: 13.1-13.3,13.5; Pr: 13.1,13.7,13.12,13.19; Example Probl.13.5, 13.6. In McQuarrie: Pr.3.8. |
Slides from today's lecture lllustrating the use of NMR spectroscopy in Biochemistry and Structural Biophysics can be found on the course canvas website (https://myelms.umd.edu/) under Files. |
| 04/20 |
Ch.17: 17.3-17.6.
| Here is the link to educational videos illustrating various aspects of Nuclear Magnetic Resonance: http://www.magritek.com/support-videos. You want to watch videos 01, 02, and 04.
Prepare for the second midterm exam that will be given on April 27. A review session for the exam will take place on Mon, April 24, at 6pm in Rm 2118 Biomolecular Sciences Bldg. Tentative equations sheet for Exam #2 is here. Make yourself familiar with these equations. |
An example of midterm exam #2 problems from last year is here.. My answers/solutions to these problems are here. I suggest you look at them after you worked on solving the problems yourself. |
| 04/18 |
Ch.17: 17.1-17.2, 17.11.
| Ch.17: Ex.Pr 17.1; Pr: 17.3,17.4,17.6,17.7. |
Solutions to HW#3 problems are here. |
| 04/13 |
Ch.8: 8.6-8.8.
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| 04/11 |
Ch.8: 8.3-8.6.
| Ch.8: Ex.Pr: 8.2-8.6; Qs: 8.1,8.2,8.7,8.9,9.10,8.12,8.13; Pr: 8.7, 8.14, 8.15. |
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| 04/06 |
Ch.8: 8.1,8.2,8.9 |
Ch.10: Pr: 10.3,10.6. Ch.8: Do Example problem 8.1. Q: 8.4. Your graded Homework #3 (due April 13 ) is here. |
For those who are curious about vector/matrix representations of the wavefunctions and operators -- here is an explanation with some examples. |
| 04/04 |
Ch.10: 10.1-10.3, Ch. 6.2 |
Ch.10 Ex.Problems: 10.1-10.2; Qs: 10.1,10.5,10.7,10.12,10.16; Pr: 10.2, 10.10. |
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| 03/30 |
Ch.9: 9.4-9.6; Ch.10: 10.1 |
Ch.9: Example Problems: 9.1-9.6; Pr: 9.2,9.3-9.7. Assess a possibilty of an atom held together by the gravitational force. Consider a hypothetical atom formed by e and n, or n and n. Calculate the Bohr's radius (a0) and the energy of the ground state and compare them with the corresponding values for the hydrogen atom. |
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| 03/28 |
Ch.9: 9.1-9.3 |
Ch.9: Qs: 9.2, 9.4,9.7-9.10, 9.16.
Show that exp(-r/a) is a solution to the Shroedinger Eq. for H-atom; determine a and E. |
Solutions to Exam #1 problems and scores statistics are posted below. |
| 03/14 |
Midterm Exam #1 |
Don't forget to bring a pen/pencil and a calculator! |
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| 03/09 |
Ch 7: 7.7 and Ch.9: 9.1-9.2. |
Prepare for Midterm Exam #1. The review session will be held on Monday March 13th at 5:30pm in Rm 2118 Biomolecular Sciences Bldg -- please come and bring your questions. |
Solutions to 2016 Exam #1 problems are here . |
| 03/07 |
Ch.7: 7.5-7.8 |
Ch.7: Qs: 7.2-7.4,7.12-7.14; Pr: 7.2,7.4,7.7,7.20,7.21. Answers/soluitions to graded Homework #2 problems are here .
Equations sheet for the upcoming midterm exam #1 is here . |
Example problems from the previous year midterm exam #1 are here . |
| 03/02 |
Ch 7: 7.2, 7.4 |
Ch.7: Ex.Pr.: 7.4,7.5; Q: 7.11,7.14; Pr: 7.10,7.21,7.35(b). What are the energies and wavefunctions for a particle in the potential that is infinitely high for x<0 and a harmonic potential for x>=0? |
A calculation of the probability to find QM HO in the classically forbidden areas can be found here. |
| 02/28 |
Ch 7: 7.1, 7.3 |
Ch.7: Ex.Pr.: 7.2,7.3. Qs: 7.1,7.5,7.6,7.8. Pr: 7.8,7.14,7.16,7.19. Your graded Homework #2 (due Mar 7, 2017) is here. Answers/soluitions to Homework #1 problems are here . |
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| 02/23 |
Ch.5: 5.3; Ch 7: 7.1 |
Ch.5: Pr: 5.4,5.5; Ch.7: Ex.Pr.: 7.1.Harry Potter and the Platform 9 3/4:
calculate the penetration length as we did in class, but this time for (1) a proton and (2) an electron.
Reminder: Vo = m*g*H, where H = 2 meters. Assume the same velocity as for Harry, i.e. v = 4 m/s. |
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| 02/21 |
Ch.6:6.1,6.3,6.4, (6.5,6.6) |
Ch.6: Example Prs: 6.3, 6.4, Qs: 6.5-8,6.14; Pr: 6.3,6.6,6.7,6.9,6.11,6.23. Evaluate the commutator [A,BC].
Using Heisenberg's equation, estimate the minimum uncertainty in the velocity of a particle (piece of chalk) with mass of 1 g if its position is known with 1 micrometer precision. Will you be able to notice such an uncertainty? Perform the same calculation for the hydrogen atom. |
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| 02/17 |
Ch.4: 4.3; Ch.5: 5.1-5.2, 5.6-5.8 |
Ch.4: Pr: 4.12,4.16-18; Ch.5: Qs: 5.6; Pr: 5.7. |
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| 02/14 |
Ch.4: 4.4 (4.3) |
Ch.4: Ex.Pr.4.2-4.4; Compute the quantum number n and the wavelength for an oxygen molecule in the room at room temperature (assume a 1D box of length 10 m). Some trigonometric equations and and identities are here. |
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| 02/09 |
Ch.4: 4.2 |
Ch.4: Ex.Pr.4.1; Qs: 4.1-2,4.6,4.9-11,4.14-15,4.18-20; Pr: 4.9,4.10,4.29. Your graded Homework #1 (due Feb 16, 2017) is here. |
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| 02/07 |
Ch.4: 4.1 |
Ch.4: Qs: 4.3-5,4.11; Pr: 4.4-4.6,4.13. |
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| 02/02 |
Ch.3: 3.1-3.5 (3.6) |
Ch.3: Qs: 3.9-3.10; Pr: 3.12,3.14,3.16 (3.5,3.6). Q#1: Schroedinger's cat was found alive in 64% experiments and dead in 36%. Reconstruct the wavefunction of the cat.
Q#2: How could you tell from the outcomes of your experiments if the QM system is in a pure state or in a superposition state? |
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| 01/31 |
Ch.2: 2.6,2.7; Ch.3: 3.1-3.3(3.4). |
Ch.2: Ex.Pr. 2.3,2.4; Pr: 2.12, 2.14; Ch.3: Qs:3.2-3.9; Pr: 3.1,3.2,3.8,3.9 |
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| 01/26 |
QCS: Ch.1 & Ch.2: 2.2-2.3 |
Ch.1: Do Example problem: 1.3.
Using Wien's displacement law, λmax*T=1.44/5 cm*K, do the following calculations:
(1) estimate λmax for your body radiation, and
(2) assuming that λmax ~ 550 nm for the Sun's radiation, estimate the temperature of the Sun's surface.
It's not too late to prepare yourself for the course. The relevant information can be found here. |
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