In a typical optical fiber the refractive indices of the core and cladding are 1.49 and 1.48 respectively. Find the numerical aperture (NA) of the fiber.

In a typical optical fiber the refractive indices of the core and clad

1.	In a typical optical fiber the refractive indices of the core and cladding are 1.49 and 1.48 respectively. Find the numerical aperture (NA) of the fiber.
A.	0.1423
B.	0.1563
C.	0.1723
D.	0.1823
Answer» D. 0.1823

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In a typical optical fiber the refractive indices of the core and cladding are 1.49 and 1.48 respectively. Find the numerical aperture (NA) of the fiber.

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