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4 marksLenses

CSEC Physics · May/June 2013 · Paper 2 · Question 3(a)(ii)

In the space below, draw a labelled diagram using the converging lens to show clearly the following features: Principal axis, Principal focus, Focal length, Focal plane.

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Other parts of this question

  1. 3(a)(i)State Snell's Law.[3 marks]
  2. 3(b)(i)Describe the path into a prism and out of a prism when a ray of light is incident at 90° to the hypotenuse of a right-angled glass prism as shown in Figure 1.[7 marks]
  3. 3(b)(ii)Through what angle would the ray be turned after emerging? [Critical angle for glass = 42° ][1 mark]

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