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O-LevelPhysicsWaves5054/11 · Oct/Nov 2011 · Q241 Mark

The diagram shows the main sections of the electromagnetic spectrum in order of increasing frequency. Some of the sections are labelled. The section R has a frequency just below that of light. Which application uses the section R?

Diagram for this question, from the exam paper

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Akilling cancerous cells

Bsatellite television

Csterilisation

Dtelevision remote controller

✓ Correct answer

D: television remote controller

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About this question

Topic: Waves, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2011 Paper 1 Variant 1, question 24.

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