Assertion: Optical fibres are used for teleco | vedclass

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(A) The Assertion is correct because optical fibres are widely used in modern telecommunication systems for high-speed data transmission.The Reason is

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

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(A) The Assertion is correct because optical fibres are widely used in modern telecommunication systems for high-speed data transmission.The Reason is also correct because the fundamental principle behind the operation of an optical fibre is the phenomenon of total internal reflection $(TIR)$.When light enters the fibre,it undergoes multiple total internal reflections at the core-cladding interface,allowing the signal to travel over long distances with minimal loss of intensity.Since the ability to transmit signals over long distances without significant attenuation is directly due to $TIR$,the Reason is the correct explanation of the Assertion.

Assertion: Optical fibres are used for telecommunication.
Reason: Optical fibres are based on the phenomenon of total internal reflection.

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Assertion: Optical fibres are used for telecommunication.Reason: Optical fibres are based on the phenomenon of total internal reflection.