Stokes Relation: R=R' Meaning & Phase Difference

[ananth271194]

One of stokes relation is that r=r'. What does this mean exactly?
Is the phase difference between incident beam and reflected beam on a boundary between 2 mediums of different refractive indices ∏??

 

[sankalpmittal]

One of stokes relation is that r=r'. What does this mean exactly?
Is the phase difference between incident beam and reflected beam on a boundary between 2 mediums of different refractive indices ∏??

These sources contain the answer to your question :

http://en.wikipedia.org/wiki/Stokes_relations
http://scienceworld.wolfram.com/physics/StokesRelations.html
http://books.google.co.in/books?id=...v=onepage&q=stokes relation in optics&f=false