Quelpr
3 marksRefraction

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

Nemo swims away and his eye is now a horizontal distance of 5 metres from point B. Looking at point B he no longer sees the net but now sees Bruce, the shark. Figure 4 illustrates this scenario.

If Bruce is at the same depth as Nemo, how far away is Bruce's eye from Nemo's eye. Explain your result.

This question uses a figure or table from the paper — you'll see it when you practise.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)State the laws of refraction.[6 marks]
  2. 4(b)(i)Calculate angle c, given that angle ABD is 42°.[3 marks]
  3. 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]

More practice: the rest of this paper · more Refraction questions · all CSEC Physics past papers