{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

finalSol09

# finalSol09 - ECE 4060 Fall 2009 Final Exam Solution Rules...

This preview shows pages 1–3. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 (b) The angular momentum L z (6 pts) ψ A ψ B Eigenfunction of L z ? Yes No Eigenvalue or Z L h ( ) 4 2 1 1 4 1 h h h = + (c) The amplitude of the total angular momentum L 2 (6 pts) ψ A ψ B Eigenfunction of L 2 ? No No Eigenvalue or 2 L 2 2 2 1 2 1 0 2 1 h h = + 2 2 2 7 3 2 2 1 2 1 4 1 0 4 1 h h = + + 3. Which of the following system has the density of states nearly independent of E ? There can be no, one or multiple answers. (4 pts) (a) The 1D harmonic oscillator (b) The 2D particle-in-a-box (c) The 3D particle-in-a-box (d) The potential in a 3D system that has potential in the x direction as quadratic well and in the y and z directions as particle-in-a-box (e) The potential in a 3D system that has potential in the x and y direction as quadratic wells and in the z direction as particle-in-a-box (f) The hydrogen atom (g) The phonons in a 3D lattice Ans: (a) and (b). You have done most of these DOS in the examples and homework.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern