Q.

9 LOSSES ASSOCIATED WITH OPTICAL FIBERS

A. 1.2 to 90 db km-1 at wavelength 0.69μm
B. 3.2 to 30 db km-1 at wavelength 0.59μm
C. 2.6 to 50 db km-1 at wavelength 0.85μm
D. 1.6 to 60 db km-1 at wavelength 0.90μm
Answer» C. 2.6 to 50 db km-1 at wavelength 0.85μm
Explanation: a multimode step index fibers show an attenuation variation in range of 2.6 to 50dbkm-1. the wide variation in attenuation is due to the large differences both within and between the two overall
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