For a fibre with an index of refraction of 1.62 and a length of 5 km, what is the time difference in travelling through the cable between a light ray with an incident of 6° and one of 7°.

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For a fibre with an index of refraction of 1.62 and a length of 5 km, what is the time difference in travelling through
the cable between a light ray with an incident of 6° and one of 7º.
Show answer choices
B
D
E
F
H
17.4 ns
20.3 ns
23.3 ns
26.2 ns
29.1 ns
32.0 ns
34.8 ns
37.5 ns
None of the above
Transcribed Image Text:For a fibre with an index of refraction of 1.62 and a length of 5 km, what is the time difference in travelling through the cable between a light ray with an incident of 6° and one of 7º. Show answer choices B D E F H 17.4 ns 20.3 ns 23.3 ns 26.2 ns 29.1 ns 32.0 ns 34.8 ns 37.5 ns None of the above
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