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CAIE A-Level Physics 8.2.1 Meaning of Diffraction

Practise defining diffraction as wave spreading through an aperture or around an obstacle, identifying it in diagrams and distinguishing it from reflection or refraction.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • define diffraction as the spreading or bending of waves when they pass through an aperture or around an obstacle
  • identify diffraction in a diagram or physical situation and distinguish it from reflection or refraction

8.2.1—The meaning of the term diffraction question 1

[Maximum number: 2]

A diffraction grating is used to determine the wavelength of light.

Describe the diffraction of light at a diffraction grating.

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