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Repeaters are not required for fiber optic cable lengths upto ________(a) 10km(b) 100km(c) 5km(d) 12kmI got this question in an international level competition.My query is from Intersymbol Interference topic in division Baseband Data Transmission of Analog Communications

Answer»

The correct CHOICE is (b) 100km

The best I can explain: Repeaters are devices which HELP in retransmitting a signal more powerfully. If the LENGTH of fiber optic cable is up to 100 km, there is no NEED for repeaters in that circuit.



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