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Question

The attenuation in optical fiber is mainly due to

A
Absorption
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B
Scattering
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C
Neither absorption nor scattering
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D
Both (a) and (b)
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Solution

The correct option is D Both (a) and (b)

A very small part of light energy is lost from an optical fiber due to absorption or due to light leaving the fiber as a result of scattering of light sideways by impurities in the glass fiber.


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