X-Ray Scattering: AP = k/|k|.r on Page 43

  • Thread starter Thread starter retupmoc
  • Start date Start date
  • Tags Tags
    Ray Scattering
retupmoc
Messages
47
Reaction score
0
Just a quick question here. On page 43 of this link

http://www.physics.gla.ac.uk/Physics4/2004-5/P4H_SSPI_complete.pdf

Why is the distance AP = k/|k|.r and similarly for OB :confused: :confused:
 
Last edited by a moderator:
Physics news on Phys.org
It's the projection of r along the vectors k and k' or in other words the distances AP and OB. It should be evident if you look at the triangles formed by k,r and AB and k',r and OB.
 
Thread 'Need help understanding this figure on energy levels'

Thread 'Need help understanding this figure on energy levels'

This figure is from "Introduction to Quantum Mechanics" by Griffiths (3rd edition). It is available to download. It is from page 142. I am hoping the usual people on this site will give me a hand understanding what is going on in the figure. After the equation (4.50) it says "It is customary to introduce the principal quantum number, ##n##, which simply orders the allowed energies, starting with 1 for the ground state. (see the figure)" I still don't understand the figure :( Here is...
View full post »
Thread 'Understanding how to "tack on" the time wiggle factor'

Thread 'Understanding how to "tack on" the time wiggle factor'

The last problem I posted on QM made it into advanced homework help, that is why I am putting it here. I am sorry for any hassle imposed on the moderators by myself. Part (a) is quite easy. We get $$\sigma_1 = 2\lambda, \mathbf{v}_1 = \begin{pmatrix} 0 \\ 0 \\ 1 \end{pmatrix} \sigma_2 = \lambda, \mathbf{v}_2 = \begin{pmatrix} 1/\sqrt{2} \\ 1/\sqrt{2} \\ 0 \end{pmatrix} \sigma_3 = -\lambda, \mathbf{v}_3 = \begin{pmatrix} 1/\sqrt{2} \\ -1/\sqrt{2} \\ 0 \end{pmatrix} $$ There are two ways...
View full post »

Similar threads

I Why X-ray scattering in crystalline solids is elastic?
Replies
5
Views
3K
I Van Laue Formulation: X-ray Diffraction from Crystal Structure
Replies
1
Views
2K
A What Are the Key Insights on Bragg/von Lau Scattering in X-Ray Experiments?
Replies
2
Views
2K
I Understanding Ewald's sphere in the context of X-Ray diffraction
Replies
3
Views
5K
Solid State Physics: X-Ray scattering
Replies
5
Views
2K
How are allowed and forbidden reflections calculated?
Replies
1
Views
3K
X-Ray emission and Bragg Scattering (K-Alpha and K-beta absorption)
Replies
1
Views
11K
Why Does X-Ray Scatter at Angle 2dsinθ?
Replies
5
Views
2K
Evaluate the energies of muonic K X rays in Fe
Replies
1
Views
4K
GR- effective potential, maximum attainable radius
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top