[Solved] Multimode graded index fibers with

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Q.	Multimode graded index fibers with
A.	single mode fibers
B.	multimode step fibers
C.	coaxial cables
D.	multimode graded index fibers
Answer» A. single mode fibers
Explanation: single mode fibers are used to produce polarization maintaining fibers which make them expensive. also the alternative to them are multimode fibers which are complex but accurate. so, single-mode fibers are not generally utilized in optical fiber communication.

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