Multiple Choice
An optical fiber is made of clear plastic with index of refraction n = 1.57.For what angles with the surface will light remain within the plastic "guide"?
A) ϕ < 32.5°
B) ϕ < 57.3°
C) ϕ < 39.6°
D) ϕ < 50.4°
E) ϕ < 68.7°
Correct Answer:
Verified
Correct Answer:
Verified
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