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4 marksRefraction

CSEC Physics · May/June 2010 · Paper 2 · Question 1(a)

A new material for anti-reflective eyeglass coating is being tested, and the results for angle of incidence and refraction are provided in Table 1.

Complete Table 1 by calculating the values for sin î and sin f.

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Other parts of this question

  1. 1(b)Use the readings from the completed Table 1 to plot a graph of sin î against sin î on the graph paper on page 2.[7 marks]
  2. 1(c)Calculate the gradient of the graph.[4 marks]
  3. 1(d)State the TWO laws of refraction.[4 marks]
  4. 1(e)Calculate the angle of refraction if the angle of incidence is 90° for this new material.[3 marks]
  5. 1(f)The anti-reflective coating works best if its refractive index is the square root of the refractive index of the lens in the eye glasses. Determine the…[3 marks]

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