Figure 33-61 depicts a simplistic optical fiber: a plastic core (n1 1.58) is surrounded
Chapter 33, Problem 65(choose chapter or problem)
Figure 33-61 depicts a simplistic optical fiber: a plastic core (n1 1.58) is surrounded by a plastic sheath (n2 1.53).A light ray is incident on one end of the fiber at angle u.The ray is to undergo total internal reflection at point A, where it encounters the coresheath boundary. (Thus there is no loss of light through that boundary.) What is the maximum value of u that allows total internal reflection at A? n2n1AFigure 33-61 65.
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