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how long does it take a signal to travel this distance if the index of refraction of the fiber is 1.45?
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how long does it take a signal to travel this distance if the index of refraction of the fiber is 1.45?

User Alexander Vakrilov
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, if the distance traveled by the signal is one kilometer and the index of refraction of the fiber is 1.45, then the time it takes for the signal to travel that distance is approximately 0.000004839 seconds (or 4.839 microseconds).
User Mkb
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