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5 marksRefraction

CSEC Physics · 1989 · Paper 2 · Question 2(b)(ii)

Light is incident at 60° at an air-water boundary and is refracted at 40°, as shown in Figure 3.

Draw a wavefront diagram to represent this refraction at an air-water boundary. (Your diagram need not be to scale.) Mark on the diagram the size of the angle between the incident wavefronts and the boundary, and also between the refracted wavefronts and the boundary.

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Other parts of this question

  1. 2(a)(i)Find the refractive index of the glass for these waves. Clearly show on the diagram (Figure 2) all measurements made.[4 marks]
  2. 2(a)(ii)What is the value of the angle of incidence for these wavefronts?[1 mark]
  3. 2(b)(i)Calculate the refractive index of water.[3 marks]
  4. 2(c)(i)Name the TWO parts of the eye where refraction takes place.[2 marks]
  5. 2(c)(ii)Explain why the amount of refraction at one of the two parts is much greater than that at the other.[1 mark]

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