Consider telecommunication through optical fi | vedclass

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(C) The correct answer is $C$. Optical fibres transmit information in the form of light pulses rather than electrical currents. Because they are made

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Optical fibres are subject to electromagnetic interference from outside.

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(C) The correct answer is $C$. Optical fibres transmit information in the form of light pulses rather than electrical currents. Because they are made of dielectric materials (glass or plastic),they do not conduct electricity. Therefore,they are immune to electromagnetic interference $(EMI)$ from external sources,such as power lines or radio frequency signals. Statements $A$,$B$,and $D$ are true characteristics of optical fibres.

Consider telecommunication through optical fibres. Which of the following statements is not true?

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