EC 8751 OPTICAL COMMUNICATION MODEL MCQ EXAM

EC 8751 OPTICAL COMMUNICATION MODEL MCQ EXAM

University

45 Qs

quiz-placeholder

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EC 8751 OPTICAL COMMUNICATION MODEL MCQ EXAM

EC 8751 OPTICAL COMMUNICATION MODEL MCQ EXAM

Assessment

Quiz

Education

University

Medium

Created by

Dr. A.S. SALMA BANU

Used 12+ times

FREE Resource

45 questions

Show all answers

1.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

A silica optical fiber with a large core diameter has a core refractive index of 1.5 and a Cladding refractive index of 1.47. Determine the acceptance angle in air for the fiber.

2.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

A silica optical fiber with core diameter large enough to be considered by Ray theory has a core refractive index of 1.5 and cladding refractive index of 1.47.Determine numerical aperture.

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

calculate the cut off wavelength of a single mode fibre with core radius of 4 m and index difference= 0.003

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The significance of fourth generation optical communication system is

Optical amplifier

Optical source

Optical coupler

splicers

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A multimode step index fiber has a normalized frequency of 72. Estimate the number of guided modes.

2846

2592

2432

2136

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An optical fiber has core-index of 1.480 and a cladding index of 1.478. What should be the core size for single mode operation at 1310nm?

7.31μm

8.71μm

5.26μm

6.50μm

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A multimode fiber has refractive indices n1 = 1.15, n2 = 1.11 and an operating wavelength of 0.7μm. Find the radius of curvature?

8.60μm

9.30μm

9.1μm

10.2μm

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