Signalling and communicationQuestion 50 of 1506

What is a drawback of single-mode fibre compared with multimode fibre?

It suffers more pulse stretching
It is affected by electromagnetic interference more than the multimode fibre is
It cannot be bent at all
It carries less light, so long runs may need more repeaters

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Correct answer: It carries less light, so long runs may need more repeaters

The small core conducts less light.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 14.5: Optical Data Communication

Questions last reviewed: 18 October 2026

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