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Cambridge IGCSE Physics

3.2.4Dispersion of light

Dispersion of light in Cambridge IGCSE Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic11 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 3.2.4.1Describe the dispersion of white light by a glass prism.
  2. 3.2.4.2Know the seven traditional colours of the visible spectrum in order of frequency and of wavelength.
  3. 3.2.4.3Supplement: know that light of a single frequency is called monochromatic.

Lessons

  • Dispersion of light

    15 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Dispersion of light: sample question

1 mark

Which colour of visible light has the longest wavelength?

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