Physics IV [Phys 262]
Objectives and Homework for September 14, 2004.


[1] Understand the photoelectric effect, and be able to explain what it implies about light.

[2] Know what Bremsstrahlung is.

[3] Understand the kinematics and dynamics of pair production and annihilation, and be able to explain how these phenomena are used in PET scans.

[4] Know what an antiparticle is, and realize that all particles observed thus far have associated antiparticles.  Realize that a particle may be its own antiparticle, but recognize that this puts serious constraints on its quantum numbers.

[5] Understand J. J. Thomson's "plum pudding" model of the atom, and be able to explain how it failed experimentally.

[6] Know the results of Rutherford's scattering of alpha particles off of gold foils, and understand what they imply about atomic structure.

[7] Know what is meant by Rutherford scattering, and understand how Rutherford derived his results.

[8] Understand the concepts of "impact parameter", "scattering angle", "cross section", and "differential cross section" as applied to scattering.

[9] Be able to apply Rutherford's scattering equation.  Realize that the total cross section for Rutherford scattering is infinite, and be able to explain why.




Homework due Friday, September 17, 2004.

[1] Finish Reading Chapter 3 in Thornton and Rex.

[2] Do Problems 27, 32, 36, 38, 40, & 47 (pp. 116-117) at the end of Chapter 3 in Thornton and Rex.