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ECE · Q137

Optical Communication

Engineering and GATE · ECE · question 137

Q137

Which one of the following is the correct statement? The graded index optical fiber cables can be considered to have

A.
smaller numerical aperture than step index cable
B.
several layers of clad and each layer having a smaller index number relative to its distance from the core
Answer
C.
several layers of clad and each layer having a higher index number relative to its distance from the core
D.
large beam spread

Answer: Option B

Solution

Answer: Option B
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