Optical Fiber Waveguides » Exercise – 1
5. The numerical aperture of a fiber if the angle of acceptance is 15 degrees, is :
(a) 017
(b) 0.26
(c) 0.50
(d) 0.75Subject Name : Communication Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
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