Determine the numerical aperture and the acceptance angle

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The velocity of light in the core of a step index ?ber is 2.01 × 108 ms -1, and the critical angle at the core-cladding interface is 80°. Determine the numerical aperture and the acceptance angle for the ?ber in air, assuming it has a core diameter suitable for consideration by ray analysis. The velocity of light in a vacuum is 2.998 × 103 ms -1.

Reference no: EM132567719

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