Recent content by gfxroad

Hi I need some helps to find a proper portable instrument/equipment to measurement radiation leakage in a radiological diagnostic facilities of hospitals. Thanks in advance

Homework Statement A point charge q is situated a large distance r from a neutral atom of polarisability α. Find the force of attraction between them. Homework Equations \vec{E}_{mono}(r)=\frac{q}{4\pi\epsilon_0r^2}\hat{r}...

What's about e branch, is there any starting point or equation for this, because I don't know where can I starting. The other branches solved correctly.

Yes, I thought part a was done correctly like: http://www.gfxroad.com/print2

a2+b2=1

∫ψψ*dτ=1

The states is more to write but I make a print screen. http://www.gfxroad.com/print-wf

Homework Statement I solved the Schrödinger equation, obtaining a wave function in terms of Radial and the spherical harmonics as follows: $$Ψ(r,0)= AR_{10} Y_{00} + \sqrt{\frac23} R_{21} Y_{10} + \sqrt{\frac23} R_{21} Y_{11} - \sqrt{\frac23} R_{21} Y_{1,-1}$$ Homework Equations...

tman12321 I was putted the relevant equation directly at the attempt part in the third step of solution.

Please, I want to clear to me is the attempts is wrong or true. Its an exercise (5.2) page 325 of Quantum Mechanic 2nd edition of Nouredine Zettili. The following is the link of the book...

Thanks, I was edited the given (miss-writing) The question is written in the first step Calculate the commutative [P^2,Lx]=?

Homework Statement Calculate the commutative [P2,Lx] Homework Equations P2=P2x+P2y+P2z [Py,Lx]=-iħPz [Pz,Lx]=iħPy [Px,Lx]=[Py,Ly]=[Pz,Lz]=0 The Attempt at a Solution [P2,Lx]=[P2x+P2y+P2z,Lx] =[P2x,Lx]+[P2y,Lx]+[P2z,Lx] =Px[Px,Lx]+[Px,Lx]Px+Py[Py,Lx]+[Py,Lx]Py+Pz[Pz,Lx]+[Pz,Lx]Pz...

Homework Statement Consider the dimensionless harmonic oscillator Hamiltonian H=½ P2+½ X2, P=-i d/dx. Show that the two wave functions ψ0(x)=e-x2/2 and ψ1(x)=xe-x2/2 are eigenfunction of H with eigenvalues ½ and 3/2, respectively. Find the value of the coefficient a such that...

Any answer or clearance for this question please?

Homework Statement In uranium (Z=92) the K absorption edge is 0.107 Å and the Kα line is 0.126 Å. Determine the wavelength of the L absorption edge. Homework Equations K-edge: EK= (Z-1)2*13.6 L-edge: EL= (Z-σL)2*13.6*1/4 what is σ and how was calculated. Characteristic X-rays: Ex = h*ν=...