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plz solve my doubt
Asked by 3047-manvir | 04 Jul, 2022, 12:30: PM
Expert Answer
Numerical aperture (N.A) of the fiber is the light collecting efficiency of the fiber and is the
measure of the amount of light rays that can be accepted by the fiber.
measure of the amount of light rays that can be accepted by the fiber.
It is equal to the sine of acceptance.
N.A=sinφmax = 
where n1 and n2 are the refractive indices of core and
cladding respectively.
where n1 and n2 are the refractive indices of core andcladding respectively.
Hence 24.4 % of power from diffused source is propagated by optical fiber
Answered by Thiyagarajan K | 05 Jul, 2022, 09:01: AM
JEE main - Physics
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