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Answer to Question #221971 in Physics for caleb villarreal

Question #221971

Optical fibers are generally composed of silica, with an index of refraction around 1.44 How fast does light travel in a silica fiber? 


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Expert's answer
2021-08-07T03:32:41-0400
"v=\\dfrac{c}{n}=\\dfrac{3\\cdot10^8\\ \\dfrac{m}{s}}{1.44}=2.08\\cdot10^8\\ \\dfrac{m}{s}."

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