Kennedy: MCQ in Introduction to Fiber Optic Technology – Answers

Below are the answers key for Multiple Choice Questions in Chapter 18: Introduction to Fiber Optic Technology from the book Electronic Communication Systems by George Kennedy. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

1. b. approximately 1.0 MHz

2. a. 20 GHz

3. b. a 1500-pair cable

4. b. a light ray directed toward a surface

5. a. separating light into its component frequencies

6. d. The angle is determined by the index of the materials

7. c. the point at which light has gone from the refractive mode to the reflective mode

8. c. acts to help guide the light in the core

9. a. a number which compares the transparency of a material with that of air

10. c. the number of wavelengths each fiber can support

11. a. the higher the speed of light

12. d. the source, the link, and the detector

13. c. 0.5 dB

14. d. Detector sensitivity

15. b. the ratio of the diode output current to optical input power

16. a. 1:10

17. c. field service conditions

18. a. 70 percent of the core diameter and 70% of the fiber NA should be filled with light

19. d. 100/140/0.3

20. c. the total power available minus the attenuation losses

Complete List of MCQ in Electronic Communication Systems by Kennedy

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