Q.

Multimode step index fiber has a large core diameter of range is                        

A. 100 to 300 μm
B. 100 to 300 nm
C. 200 to 500 μm
D. 200 to 500 nm
Answer» A. 100 to 300 μm
Explanation: a multimode step index fiber has a core diameter range of 100 to 300μm. this is to facilitate efficient coupling to inherent light sources.
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