If a fiber operates at 1400nm with the diameter of about 10 m, n = 1.30, = 0.80% , V = 3.5, then how many modes will it have?

If a fiber operates at 1400nm with the diameter of about 10 m, n = 1.3

1.	If a fiber operates at 1400nm with the diameter of about 10 m, n = 1.30, = 0.80% , V = 3.5, then how many modes will it have?
A.	6.125
B.	9.655
C.	12.95
D.	16.55
Answer» B. 9.655

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If a fiber operates at 1400nm with the diameter of about 10 m, n = 1.30, = 0.80% , V = 3.5, then how many modes will it have?

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