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3.2.3a Converging and diverging lenses

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Question 17

A student is carrying out an optics experiment using an illuminated object, a converging lens, and a screen to determine its focal length.

a.

Describe how the student should arrange the apparatus on a workbench and how they should use a metre rule to measure:

  1. the object distance uuu (the distance between the object and the lens),
  2. the image distance vvv (the distance between the lens and the screen).
[4]
b.

State two experimental precautions that the student should take to obtain accurate results in this experiment.

[2]
Markscheme

3.2.3a Converging and diverging lenses Questions

  1. IGCSE
  2. /Physics
  3. /3.2.3a Converging and diverging lenses

56 exam-style questions on CIE IGCSE Physics 3.2.3a Converging and diverging lenses. Each one has a worked solution and a mark scheme showing where the marks go.

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