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hw9_p5406_s10 - HW 9 Phys5406 S10 due 1 An optical ber has...

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HW 9 Phys5406 S10 due 4/15/10 1) An optical fiber has the shape of a right circular cylinder of transparent material of index of refraction n. a) If all light that enters one end face is to be transported to the other end face, what is the minimum value of n = n min ? b) If n = 0 . 9 n min , what is the largest angle of incidence for which no light is lost? c) Suppose the fiber is clad with a very thin coating of material n > n Show that the same amount of light makes it to the other end as in part b. d) Nevertheless such fibers are clad and more light is collected.
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