Transmission Characteristics of Optical Fiber » Exercise – 1
1. LEDs are used as light sources in :
(a) single mode fibers only
(b) multimode fibers only
(c) both single mode and multimode fibers
(d) none of the above
| Subject 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 |
| GATE 2023 Total Info | ENGG DIPLOMA | UGC NET Total Info |
| IES 2023 Total Info | PSUs 2022 Total Info | CSIR UGC NET Total Info |
| JAM 2023 Total Info | M TECH 2023 Total Info | RAILWAY 2022 Total Info |
Related Posts
Transmission Characteristics of Optical Fiber » Exercise - 15. What type of fiber has the highest modal dispersion ? (a) step-index multimode (b) graded index multimode (c) step-index single mode (d) graded index mode- Transmission Characteristics of Optical Fiber » Exercise - 1 8. Which of the cable length has the highest attenuation ? (a) 1 km (b) 2 km (c) 95 ft (d) 5500 ft
- Optical Fiber Waveguides » Exercise - 15. The numerical aperture of a fiber if the angle of acceptance is 15 degrees, is : (a) 017 (b) 0.26 (c) 0.50 (d) 0.75
- Introduction to Optical Fiber » Exercise - 13. The speed of light is : (a) 300,000,000 mi/s (b) 300,000,000 mm/s (c) 300,000,000 m/s (d) 300,000,000 km/s
- Line with Any Termination » Exercise - 19. The reflection coefficient on a transmission line is 1/3, what is the SWR ? (a) 0 (b) 3 (c) 2 (d) 4