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Optical Fiber Waveguides – 1 – 2

 6. The operation of the fiber-optic cable is based on the principle of :

(a) refraction
(b) reflection
(c) dispersion
(d) 
absorption

ANSWER

EXPLANATION

7. The core of a fiber optic cable is made of :

(a) air
(b) glass
(c) diamond
(d) 
quartz

ANSWER

EXPLANATION

8. The inner portion of the fiber cable is called :

(a) cladding
(b) coating
(c) inner conductor
(d)
 core

ANSWER

EXPLANATION

9. Which of the following is not a common type of fiber-optic cable ?

(a) single-mode step-index
(b) multimode graded-index
(c) single-mode graded-index
(d) 
multimode step-index

ANSWER

EXPLANATION

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