The index profile of a core of multimode graded index fiber is given – McqOptions

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1.	The index profile of a core of multimode graded index fiber is given by-
A.	n (r) = n1 [1 â€“ 2Î”(r2/a)2]1/2; r<a
B.	n (r) = n1 [3 â€“ 2Î”(r2/a)2]1/2; r<a
C.	n (r) = n1 [5 â€“ 2Î”(r2/a)2]1/2; r>a
D.	n (r) = n1 [1 â€“ 2Î”(r2/a)2]1/2; r<a
Answer» E.

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