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Properties of waves

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Question 13

Telemetry data from deep-sea scientific probes can be transmitted to a surface vessel using either analogue or digital signal systems.

a.

Sketch a graph on the axes below to show how a typical digital signal varies with time.

An empty graph template with a horizontal axis labeled 'Time' pointing to the right and a vertical axis labeled 'Signal amplitude' with arrows pointing up and down, with the origin '0' marked at the intersection.

[2]
b.

Explain two disadvantages of transmitting data via analogue signals rather than digital signals over long distances.

[8]

Properties of waves Questions

  1. IGCSE
  2. /Physics
  3. /Properties of waves