Introduction to Optical Fiber » Exercise – 1
10. Which theory states that the light wave behaves as if it consists of many tiny particles ?
(a) huygen’s theory
(b) wave theory of light
(c) nyquist theory
(d) quantum theorySubject 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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Introduction to Optical Fiber » Exercise - 1 14. Founded the wave theory of light : (a) francesco Grimaldi (b) edward Appleton (c) james Clerk Maxwell (d) christian Huygens- Introduction to Optical Fiber » Exercise - 1 1. The basic principle involved in light transmission through a fiber optic link is : (a) total internal reflection (b) polarization (c) diffraction (d) refraction 2. The band of light wavelengths that are too long to be seen by the human eye : (a) amber (b) visible (c) infrared (d) ultraviolet 3. 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 4. The wavelength of visible light extends from : (a) 0.8 to 1.0 nm (b) 400 to 750 nm (c) 200 to 660 nm (d) 700 to 1200 nm 5. The main benefit of light-wave communications over microwaves or any other communications media is : (a) lower cost (b) better security (c) wider bandwidth (d) freedom from interference 6. Which of the following is not a major benefit of fiber-optic cable ? (a) immunity from interference (b) no electrical safety problems (c) excellent data security (d) lower cost 7. Which of the following is not part of the optical spectrum ? (a) infrared (b) ultraviolet (c) visible color (d) X-rays 8. Which of the following is not a common application of fiber-optic cable ? (a) computer networks (b) long-distance telephone systems (c) closed circuit TV (d) consumer TV 9. If a mirror is used to reflect light, the reflected light angle is…
- Introduction to Optical Fiber » Exercise - 14. The wavelength of visible light extends from : (a) 0.8 to 1.0 nm (b) 400 to 750 nm (c) 200 to 660 nm (d) 700 to 1200 nm
- 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
- Introduction to Optical Fiber » Exercise - 12. The band of light wavelengths that are too long to be seen by the human eye : (a) amber (b) visible (c) infrared (d) ultraviolet