- #1
Nb
The drawing shows an optical fiber that consists of a core made of flint glass (nflint = 1.667) surrounded by a cladding made of crown glass (ncrown = 1.523). A beam of light enters the fiber from air at an angle q 1 with respect to the normal. What is q 1 if the light strikes the core-cladding interface at the critical angle q c?http://edugen.wiley.com/edugen/courses/crs1000/art/images/c26/nw1183-n.gif
i know u have to use snell's law
sin theta = (n2/n1), but i don't know what to do from here.
The textbook in which this problem is in gives no info on these kinds problems. Please help me
i know u have to use snell's law
sin theta = (n2/n1), but i don't know what to do from here.
The textbook in which this problem is in gives no info on these kinds problems. Please help me