Multiple Choice
A light ray (red) enters a concentrically cladded optical fiber at its center and an angle of 29.0° to the axis of the fiber.The diameter of the fiber is 1.0 mm and its refractive index is nf = 1.35.What must be the value of ncladding to guarantee total internal reflection? (nair = 1.00)
A) 1.18
B) 1.26
C) 1.70
D) 1.08
Correct Answer:

Verified
Correct Answer:
Verified
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