Thin Lenses

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Topic Objectives

By the end of this topic, the learner should be able to:

  1. Describe converging lenses and diverging lenses;
  2. Describe using ray diagrams the principal focus, the optical centre and the focal length of a thin lens;
  3. Determine experimentally the focal length of a converging lens;
  4. Locate images formed by thin lenses using ray construction method;
  5. Describe the characteristics of images formed by thin lenses;
  6. Explain image formation in the human eye;
  7. Describe the defects of vision in the human eye and how they can be corrected;
  8. Describe the use of lenses in various optical devices;
  9. Solve numerical problems involving the lens formula and the magnification formula.
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Unit Includes

  • 6 Lessons
  • 1 Quiz
  • Unit Certificate
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