Saturday
February 28, 2015

Homework Help: Physics

Posted by Ashley on Sunday, February 20, 2011 at 1:27pm.

A British company makes optical fibers that are 13.6 km in length. If a beam of light travels along one of those fibers, always reflecting at the critical angle, it will travel 20.3 km. What is the index of refraction of the fiber material?

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