Recent content by Mec

Pls derive the time-independent schrodinger equ from the time-dependent equ.? Thanks! Anyone has any sugestiond on how to approach this? -\frac {\hbar^2} {2m} \frac {\partial^2 \psi(x,t)} {\partial (x)^2} + U\psi(x,t) =i\hbar\frac{\partial\psi(x,t)}{\partial (t)}

Btw, Thanks for help though.. Anyway, Here is the exact one problem if that help at all: Find the expectation val. for the 2nd hydrogen energy level for an infinite sqr. weell. Consider the particle trapped in the an area from z=0 to z=s. Anyway, what should the quantum number for the 2nd...

ok, this is my mistake here. i should have said this a bit clear. let me expalin it this way: find the expecation valude for the 2nd hydro. level for this sqr. well. And in fact the particle is traped between an area rang from z=0 to z=s. i hope this clear some of the confusion, and sorry about...

Isn't that the second energy level for hydrogen is 3, and 3 is the quantum number for 2nd energy level?

I hope someone here can help me a bit here and I'm just become a new member here, so just bear with me: A particle is trapped in an area form z=0 to z=s: a. find the expecation value for the 2nd hydrogen energy level. b. find the probability for an electron between .2s to .3s. Ok, i start...