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Optical Communication MCQ Questions & Answers | ECE

Learn Optical Communication MCQ questions & answers are available for a Electronics and Communications Engineering(ECE) students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Optical Communication MCQ question is the important chapter for a Electronics and Communications Engineering(ECE) and GATE students. Page-7 section-2

Each section contains 100 MCQs on Optical Communication .
61
. . . . . . . . is used to describe the light gathering or light collecting ability of an optical fiber
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Answer & Solution
Answer: Option C
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62
A step index fibre has core diameter 40 µm with core refractive indix of 1.3 and numerical aperture 0.5, then the refractive index of cladding is
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Answer: Option A
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63
Refractive index of glass is 1.5. What is the wavelength of a beam of light with a frequency of 1014 Hz in glass? Assume velocity of light in vacuum to be 3 × 108 m/sec.
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Answer: Option C
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64
The concept used in the scheme of WDM is similar to
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Answer: Option A
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65
Which of the following introduces mode partition noise?
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Answer: Option C
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66
The working of an optical fiber is bases on
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Answer: Option B
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67
If a fiber operates at 1400 nm with the diameter of about 10 µm, n1 = 1.30, ∆ = 0.80%, V = 3.5, then how many modes will it have?
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Answer: Option A
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68
Fibers have numerical aperture (NA) in the region of 0.15 to 0.4. Fibers with higher N.A. values generally exhibit
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Answer: Option C
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69
The fiber splice is a . . . . . . . . joint between 2 fibers.
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Answer: Option B
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70
At critical radius of curvature, in multimode fibers
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Answer: Option C
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