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6 marksRefraction

CSEC Physics · January 2008 · Paper 2 · Question 3(a)

Figure 1 shows light passing through a rectangular glass block. Important features of this arrangement are labelled A, B, C, D, E and x.

Identify the labelled parts of Figure 1.

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Other parts of this question

  1. 3(b)(i)Determine the value of angle b (b̂) when a = 60°.[1 mark]
  2. 3(b)(ii)State a reason for your answer in (b)(i).[1 mark]
  3. 3(b)(iii)Calculate the value of angle d, (d̂).[4 marks]
  4. 3(b)(iv)Determine the value which angle d (d̂) must exceed if E is to be totally internally reflected.[3 marks]

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