Recent content by lvjudge

Ok, now I see. The first path is just straight through the center. but the second path is reflected off the side of the wire at the critical angle. I found the critical angle using theta=arcsin(n2/n1)=1.272015952 rad Now that I've got this information, I really can't figure out where to go or...

Homework Statement The figure below shows an optical fiber in which a central plastic core of index of refraction n1 = 1.58 is surrounded by a plastic sheath of index of refraction n2 = 1.51. Light can travel along different paths within the central core, leading to different travel times...

Thanks. The notation did get kind of scrambled when I posted it, but thanks for your help!

Homework Statement Matrix A is 3x3 1 -5 -5 -5 1 5 5 -5 -9 Find basis for corresponding eigenspace when eigenvalue is -4 a) 0 b) 1 0 c) 1 d)1 0 1 0 1 0 0 1 -1...