Physics 3343: Modern Physics Fall 2015

Professor: Dr. Daniel K. Marble Office: SCI 213E Telephone: 254-968-9880 Email: marble@tarleton.edu Office Hours: M,F 3:00-5:00 T,R 9:30- 12:00 Others by appointment Class: MWF 9:00-2:00 W 2:00-8:00 TR 1:00-2:30 Accelerator Lab: Science 232

Textbooks Required: 1) Modern Physics 3rd Edition by Serway, Moses, and Moyer 2) Schaum’s Mathematical Handbook of Formulas and Tables or Equivalent Math

handbook(CRC, etc. ) Recommended: 1) Quantum Physics of Atoms, Atoms, Molecules, Solids, Nuclei, and Particles 2nd Ed by Eisberg and Resnick 2) Schaum's Outline Series: Modern Physics by Gautreau and Savin

References: 1) The Feynman Lectures on Physics Series (Vol III)

2) Modern Physics to Z0 by J.W. Rohlf 3) The Quantum Physicists and an Introduction to Their Physics by W. Cooper 3) Mechanical Universe Videos by CalTech – Free on Internet at www.learner.org 4) TECP Modern Physics Website and Class Videos

Reference Materials: Books, Videos, and CD’s may be checked out of either the Physics Student Resource Room 218 or the Society of Physics Student Lounge Room 104 at TSU. Class Website: http://www.tarleton.edu/physics/ModernI/index.html TECP Website: http://www.tarleton.edu/tpc/PHYS334/index.html Course: Physics 3343 covers important physics discoveries from the late 1800's to the present. The emphasis is on the Special Theory of Relativity, Statistical Mechanics and Quantum Mechanics and their application to important systems including electronics, nuclear physics, lasers, etc. Physics 3343 students are expected to be well grounded in the principles of Classical Physics. The course is intended to provide the student with a strong foundation for future course work in engineering and physics as well as improving the student’s general problem solving skills. The course requires extensive use of math skills and physics concepts learned in previous courses. Grading: The final grade for Physics 3343 will be based upon a combination of written examinations, quizzes, and homework. At least two exams will be given during the semester as well as a comprehensive final. Class: Students are expected to go to the course website and complete the required learning module prior to class. This includes both the outside reading assignment and making a good faith attempt to answer every “Test Your Knowledge Problem” prior to class. During class, the instructor will do demonstrations, expand on the material in the module, answer student questions, and engage students in dialog and problem solving to eliminate student misconceptions. Students are

expected to take an active part in class discussions and will be randomly called upon in class to answer questions on the reading assignment and to explain to the class their solutions to the “Test Your Knowledge Problems” as well as any other assigned work. Homework: Homework problems are to be submitted prior to the assignment deadline as a scanned Pdf document into the WTClass system. Students may submit work in groups of up to three. Any larger group requires special permission from the instructor. Most departmental copiers as well as computer scanners can produce Pdf documents. Unless told otherwise, the instructor will NOT accept documents submitted in forms other than Pdf or outside of WTclass in order that all material is archived and entered into the WTClass grade book. This includes cell phone pictures and other graphics versions of student work. It is the student’s responsibility to ensure they complete assignments in time to scan their work. Test Your Knowledge Problems: These are special homework problems in pre-class assignment of each course module that a student should be able to solve if they understand the reading material for that class. As such they have been chosen to ensure the student completes the pre-class reading and is prepared for class as well as representing some of the standard problems that can be asked upon tests. Prior to the class deadline, the student’s solutions should be scanned into a Pdf document and entered into WTClass. The problems will be graded based upon the student making a reasonable attempt to solve each problem and not upon the correctness of the student’s solution. Students may submit work in groups of up to three. The instructor will go over those problems that the students have questions on during class. Exams: Unless told otherwise by your instructor, all exams and the final will be proctored closed book and closed note exams in which the student will be asked to demonstrate mastery of the material covered as well as past material from math and university physics courses. Remote Office Hours: If you have a question about the course material, then contact me or your local facilitator. Don’t just skip the material. I am reasonable fluent in technology based course delivery and meetings having taught remote students for over 15 years through a variety of systems. I have a Zoom Meeting account which you can use to contact me for a video conference. In my office, I have the ability to make videos using Camtasia and other software as well as a writing tablet which I can write on and share the screen results. If you don’t have a writing tablet, you can scan your problem into Pdf and send it to me as an email attachment prior to pour meeting and I can then write on it as we talk to show where you have mistakes. Topic Schedule (Subject to modification based upon time): 1. Classical Physics and Math Review 2. Special Relativity I (Michelson-Morley, Fitzgerald Contraction and Time Dilation) 3. Special Relativity II (Addition of Velocities and Space-Time) 4. Special Relativity III (Doppler Shift, Mass-Energy, Linear Momentum) 5. Review of Thermodynamics (P-V Diagrams, Ideal Gas Laws, Specific Heat, Equipartition

Theorem) 6. Probability Concepts (average, uncertainty, etc) and Probability Distributions (Poisson,

Binomial, Gaussian) 7. Thermal Physics (Wein’s Displacement Law, Stephan-Boltzman, Rayleigh-Jeans) 8. Blackbody Radiation (Plank’s Solution) 9. Photoelectric Effect 10. Compton Scattering 11. Early Atomic and Nuclear Physics (Thomson, Rutherford, Millikan, Moseley, etc) 12. Spectroscopy (Emission, Absorption, Bohr Model) 13. Quantum Duality and Uncertainty 14. Quantum Wave Mechanics (expectation, operators, probability density, uncertainty, etc) 15. Quantum Systems (particle in a box, harmonic oscillator, rigid rotator, hydrogen atom,

barriers, wells) 16. Statistical Physics (Maxwell-Boltzman, Fermi-Dirac, Einstein-Boltzman)

17. Solid State 18. Lasers (Stimulated Emission, A-B Coefficients, Parts of a Laser, 4-Level Laser, Lasing

Without Inversion) 19. Nuclear (Mass Defect, Size, Liquid-Drop) 20. Radioactivity 21. Other Topics (Stars, Fusion, Fission, etc.) Course Learning Goals: Upon completion of this course with a C or better, students will:

1. be able to state the postulates of the special theory of relativity and solve problems involving time dilation, length contraction, relativistic energy, and momentum.

2. be able to describe the experimental setup and results of important experiments and observations that led to the development of modern physics along with the predictions of classical physics and be able to solve problems related to these concepts.

3. be able to explain qualitatively the meaning of various concepts including expectation value, wave function, uncertainty principle, wave-particle duality, and Bohr correspondence principle and be able to solve problems related to these concepts.

4. be able to state the assumptions behind the Bohr model and be able to apply the model to calculate the predicted energy levels of single electron atomic systems.

5. be able to apply the Schrodinger equation to analyze simple 1-D problems including infinite and finite square wells, quantum harmonic oscillator, finite barriers, and the hydrogen atom.

6. be able to explain the meaning of spatial quantization and be able to solve problems related to the electron energy level correction for an atom in a magnetic field.

7. be able to define statistics terms including mean, variance, standard deviation, probability density, Poisson distribution, Gaussian distribution, Binomial distribution, and uncertainty and be able to apply them to solve physics problems.

8. be able to explain the differences between spontaneous emission, stimulated emission, and absorption.

9. be able to list the basic components of a laser and draw the energy state diagram for a 4-state laser.

10. be able to solve problems involving radioactivity including alpha, beta, internal conversion, and gamma emission.

11. be able to determine the binding energy per nucleon for a nucleus using either the Bethe-Weizsacher formula or using experimental data from a periodic table or mass defect charts.

Disabilities: It is the policy of Tarleton State University to comply with the Americans with Disabilities Act and other applicable laws. If you are a student with a disability seeking accommodations for this course, please contact the Center for Access and Academic Testing, at 254.968.9400 or caat@tarleton.edu. The office is located in Math 201. More information can be found at www.tarleton.edu/caat or in the University Catalog.

Academic Integrity Statement

Tarleton State University's core values are integrity, leadership, tradition, civility, excellence, and service. Central to these values is integrity, which is maintaining a high standard of personal and scholarly conduct. Academic integrity represents the choice to uphold ethical responsibility for one’s learning within the academic community, regardless of audience or situation.

Academic Civility Statement

Students are expected to interact with professors and peers in a respectful manner that enhances the learning environment. Professors may require a student who deviates from this expectation to leave the face-to-face (or virtual) classroom learning environment for that particular class session (and potentially subsequent class sessions) for a specific amount of time. In addition, the professor might consider the university disciplinary process (for Academic Affairs/Student Life) for egregious or continued disruptive behavior.

Academic Excellence Statement

Tarleton holds high expectations for students to assume responsibility for their own individual learning. Students are also expected to achieve academic excellence by:

• honoring Tarleton’s core values.

• upholding high standards of habit and behavior.

• maintaining excellence through class attendance and punctuality.

• preparing for active participation in all learning experiences.

• putting forth their best individual effort.

• continually improving as independent learners.

• engaging in extracurricular opportunities that encourage personal and academic growth.

• reflecting critically upon feedback and applying these lessons to meet future challenges.