Which of the following statements is not true about the optical fibres?

Asked in Civil Judge 2018 · Topic: Data Communication and Transmission Modes (Guided Transmission Media (Twisted-Pair, Coaxial Cable, Fiber Optics))

1. They provide longer number of connectivity for telephones.
2. They are less noisy.
3. They are cheaper.
4. They have longer life - time.

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