View Single Post
Feb10-13, 07:22 PM
P: 94
In textbook on optics by Pedrotti (and I think Fowles does the same) on page 493 it is said that:


from which follows


where k, kr and kt are wave vectors of incident, reflected and transmitted wave.

Than Pedrotti concludes that kr and kt must lie in a plane determined by k and r. Must they?

Take, for example this:

k=(-1,0,1), r=(1,0,0), kr=(-1,5,3), kt=(-1,2,1).

If we put this vectors in the equation above, we will get 0, but kr and kt don't lie in the plane determined by k and r, which is y=0 plane.

So I conclude that Pedrotti is wrong. Am I right or wrong to conclude that? If wrong, why?
Phys.Org News Partner Physics news on
Engineers develop new sensor to detect tiny individual nanoparticles
Tiny particles have big potential in debate over nuclear proliferation
Ray tracing and beyond