Total Internal Reflection and Optival Fibres includes the following learning objectives:

  • Explain the conditions under which total internal reflection occurs;
  • Understand the term critical angle;
  • State and apply the expression for the critical angle at a boundary between a substance of refractive index?n1 and another substance of lesser refractive index?n2;
  • Explain how optical fibres work and their uses in communication and medical physics;
  • Understand the problems associated with optical fibres and how these can be accounted for.

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