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Optical fibers are the best medium of tr...

Optical fibers are the best medium of transmission over copper wires, because

A

The loss of data in optical fibers is very-very high

B

optical fiber is cheap and easy to construct

C

The optical fibers are made of glass and they are automatically isolated from the current

D

The optical fibers can take few number of telephonic message at a time.

Text Solution

Verified by Experts

The correct Answer is:
C
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Pick out the correct staments about optical fibres from the following: S1: Optical fibres are used for the transmission of optical signals only S2: Optical fibres are used for transmission of optical electrical signals S3: The intensity of light signals sent through optical fibres suffer very small loss S4: Optical fibres effectively employ the principle of multiple total internal reflections S5: Optical fibres are glass fibres coated with a thin layer of a material with lower refractive index

For electric power transmission, copper or aluminium wire is used.

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