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Cambridge AS & A Level Physics

8.2Diffraction

Diffraction in Cambridge AS & A Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic23 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 8.2.1Explain the meaning of diffraction.
  2. 8.2.2Describe diffraction experiments, including the effect of gap width relative to wavelength.

Lessons

  • Diffraction of waves through gaps and round obstacles

    30 min

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Sample question

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

Diffraction: sample question

1 mark

Plane water waves pass through a gap in a barrier in a ripple tank. Which change makes the waves spread out more beyond the gap?

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