Optical phenomenon that is responsible for the propagation of light signal through an optical fiber is ?
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The phenomenon responsible for working of optical fibres is called Total Internal Reflection.
The inside of an optical fibre is made of mirror-lined wall called ‘cladding’. Light travels down the optic fibre by bouncing off the cladding, continuously. The light signals do not weaken since the cladding does not absorb any light from the source and therefore they are able to cover very long distances, compared to normal or ordinary cables.
Fibre optics is used widely in the field of communication. Examples are cable TV, high-speed Broadband services etc.
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