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Cambridge IGCSE Physics practice

What is a disadvantage of analogue signals?

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Show answerElectromagnetic spectrum revisionRevise the key idea

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MCQ

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Electromagnetic spectrum

Exam-style question

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What is a disadvantage of analogue signals?.

  1. A.They are easy to process
  2. B.They can degrade over distance
  3. C.They are less complex
  4. D.They are always accurate

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Paper 4 structured question: Electromagnetic spectrum

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Description

Signal Types

Digital signals are represented by discrete values, while analogue signals are represented by continuous values. Digital signals are less affected by noise and can be easily processed by computers.

  1. a

    State the main difference between digital and analogue signals.

    Aim for approximately 1 distinct marking point.

    [1]