Multiple Choice
An optical fiber is made of clear plastic with index of refraction n = 1.52.For what angles with the surface will light remain within the plastic "guide"?
A) ϕ < 33.3°
B) ϕ < 59.2°
C) ϕ < 41.1°
D) ϕ < 48.9°
E) ϕ < 70.0°
Correct Answer:

Verified
Correct Answer:
Verified
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