(A) : Optical fibers are used to transmit light without any loss in its intensity over distance of several kilometers.
(R) : Optical fibers are very thick and all the light is passed through it without any loss.

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'A' is true and 'R' is false

Both 'A' and 'R' are true and 'R' is not the correct explanation of 'A'

Both 'A' and ‘R’ are false

Both 'A' and 'R' are true and 'R' is the correct explanation of 'A'.

answer is C.

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Detailed Solution

Optical fibers are very thin, of the order of thickness of human hair.

Based on the phenomenon of total internal reflection, optical fibers transmit light over very large distances, with minimum loss in intensity.

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