Recent content by CINA

Not sure whether to post this here or in QM: I trying to numerically solve the Schrödinger equation for the Woods-Saxon Potential and find the energy eigenvalues and eigenfucnctions but I am confused about how exactly the eigenvalues come about. I've solved some differential equations in the...

Alright, I have trouble with terminology: The states |\alpha_1> and |\alpha_2> are superpositions of three-dimensional harmonic oscillator eigenstates as expressed in the the |n_x,n_y,n_z> basis (don't know what exactly you'd call this basis.) Is that correct? An alternative basis would be the...

Homework Statement For the three-dimensional harmonic oscillator H_{xyz} = \frac{p_x^2}{2m}+\frac{p_y^2}{2m}+\frac{p_z^2}{2m}+\frac{1}{2}m \omega^2 x^2 + \frac{1}{2}m\omega^2 z^2 + \frac{1}{2}m\omega^2 z^2 Consider: | \alpha_1 > = \frac{1}{\sqrt{2}} (|n_x = 0, n_y = 0, n_z = 0> + |n_x = 0...

I've searched around but can't seem to seem anything that addresses the differences between ugriz filters and u'g'r'i'z' filters. What are u'g'r'i'z'? Is there a way to convert u'g'r'i'z' into ugriz? Thanks

I remember hearing a discussion somewhere, I think NPR science Friday, where undergraduates in physics should be thought more of as 'pre-physics', much like pre-med and pre-law. I think that is fair; it's what I consider myself.

Homework Statement Produce plots of I(λ, T) vs. λ for a blackbody at temperature T = 500 K. Compute the number of photons emitted with 400nm < λ < 450 nm for each temperature, assuming the total surface area is 1.0000 m2, to 5 significant figures. Homework Equations Planck's Law...

Hi, I'm having some trouble understanding the path difference between two parallel rays leaving a single slit, and was hoping you guys could help me. I'm having a hard time understand what path differences exist for each subsection of a slit and for which minimum. For example: -What is the...

Homework Statement A particle moves at speed u_{x}= +0.0c according to an observer in the frame S. a)Calculate the velocity of the particle, u_{x}'_{Gal} and u_{x}'_{SR} as measured by an observer in S'. Let \beta range from -0.95c to +0.95c in increments of 0.05. Put your results in a...

Homework Statement I'm doing a lab and it says: Assume that on the double-slit plate, pattern A has exactly the slit separation printed on the plate. Shine the laser through pattern A onto a screen. Decide whether you will measure positions of maxima, minima, or both. Measure the...

The image formed by the first lens is now the object for the second lens. Find out where the image forms with respect to the second lens. Without drawing a picture it looks like p2 is -3f. That is: |--|------q1/p2 where "|" is a lens and "--" is one distance f. As you can hopefully see...

Homework Statement A client has asked you to produce a sheet of material that will appear yellow for transmitted light and purple for reflected light. You decide that "yellow light" is 600 nm and that "purple light" is 400 nm. If you use MgF2 (n2= 1.39), how think should the sheet be...

Homework Statement While walking along the shore at your beachfront home, you notice that there are two narrow gaps in the breakwater, the wall that protects the shore from the waves. These gaps are 9.0 m apart and the breakwater is 12.0 m from the shore and parallel to it. You go to the...

In a double slit, when the distance between the screen is NOT small (i.e. the rays r1 and r2 are not parallel) how is path length determined? Thanks

Homework Statement Light of wavelength 500 nm illuminates a double slit, and the interference pattern is observed on the screen. At the position of the m = 2 bright fringe, how much farther is it to the farther slit than to the nearer slit? Homework Equations \delta=...

Ok, so here are the equations I'm using: (1)n_{1}sin(\theta_{1})=n_{2}sin(\theta_{2}) (2)cos(\theta_{2})=\frac{x}{a} (3)sin(\theta_{1}-\theta_{2})=\frac{d}{a}I find sin(\theta_{2}) from (1): \frac{n_{1}}{n_{2}}sin(\theta_{1})=sin(\theta_{2}) I expand (2)...