plumiMeasuring refractive index: Edexcel International A Level Physics questions
Edexcel International A Level Physics past-paper questions on 2.3.3.4 Measuring refractive index, 2019–2025, with mark schemes and examiner’s reports where available.
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Q3(a)(i)
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All 6 questions on Measuring refractive index, as a list
- October 2022, AS Unit 3, Q3(a)(i) (3 marks): Describe a method to measure u and v. (3)
- October 2022, AS Unit 3, Q3(b)(ii) (3 marks): When surrounded by air, the power of a lens this shape can be calculated using the equation n − n 1 P = lens air n r air where r is the radius of the c
- June 2022, AS Unit 3, Q2(b)(i) (3 marks): Explain why the gradient of this graph can be used to determine the refractive index of the transparent material. (3)
- June 2022, AS Unit 3, Q2(b)(ii) (2 marks): Determine the refractive index of the transparent material. (2) Refractive index =
- January 2021, AS Unit 3, Q2(d) (3 marks): The student used rays of white light. Explain why using monochromatic light would increase the validity of the conclusion made in (c). (3)
- January 2020, AS Unit 3, Q3(c) (4 marks): The relationship between the refractive index n, the angle of incidence θ1 and the angle of refraction θ2 is given by the equation sin θ1 = n sin θ2 Describe a
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