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3 marksRefraction

CSEC Physics · May/June 2014 · Paper 2 · Question 4(b)(i)

Figure 3 shows a clown fish, Nemo, looking at point B. It sees the fisherman's net appearing as if it were at A.

Calculate angle c, given that angle ABD is 42°.

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Other parts of this question

  1. 4(a)State the laws of refraction.[6 marks]
  2. 4(b)(ii)Given that angle c is the critical angle for the air-water boundary, calculate the refractive index of the water.[3 marks]
  3. 4(b)(iii)If Bruce is at the same depth as Nemo, how far away is Bruce's eye from Nemo's eye. Explain your result.[3 marks]

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