plumiDefects of vision and their correction using lenses: AQA A‑Level Physics questions
AQA A-Level Physics past-paper questions on 3.10.1.2 Defects of vision and their correction using lenses, 2008–2025, with mark schemes and examiner’s reports where available.
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Q01.3
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All 40 questions on Defects of vision and their correction using lenses, as a list
- June 2025, Paper 3 Medical physics, Q01.3 (4 marks): An eye of a typical 30-year-old person has a far point at infinity. The focal length of the eye when viewing an object at its far point is 23 mm. Calculate the
- June 2025, Paper 3 Medical physics, Q01.4 (2 marks): For a typical person, the far point remains at infinity as the person’s age increases. Some studies suggest that hypermetropia increases with age. Explain how F
- June 2024, Paper 3 Medical physics, Q01.1 (1 mark): A human eye has a far point of 6.0 m. State the name of this defect of vision. [1 mark]
- June 2024, Paper 3 Medical physics, Q01.2 (2 marks): Calculate the power of the correcting lens required for this eye. [2 marks] power = D
- June 2024, Paper 3 Medical physics, Q01.3 (1 mark): An eye with astigmatism requires the following prescription: −4.00 –0.75 ×30 Which row identifies the meaning of each number? Tick () one box. [1 mark] −4.00 −
- June 2022, Paper 3 Medical physics, Q01.1 (1 mark): Which eye condition could be corrected by using this lens? Tick () one box. [1 mark] astigmatism hypermetropia myopia
- June 2022, Paper 3 Medical physics, Q01.2 (3 marks): Calculate the magnification produced by the +4.0D lens when viewing an object 75 cm from this lens. [3 marks] magnification =
- November 2021, Paper 3 Medical physics, Q05.1 (1 mark): Which would be a correct lens prescription for a person with hypermetropia and astigmatism? Tick () one box. [1 mark] −2.00 +0.50 75 +2.00 −0.50 75 −2.00 +0.50
- November 2021, Paper 3 Medical physics, Q05.2 (6 marks): A student views an object O and cannot see it clearly unaided. The student is diagnosed with myopia and is prescribed a suitable correcting lens. Using the corr
- June 2019, Paper 3 Medical physics, Q01.1 (1 mark): Identify the driver’s eye defect. Tick () one box. [1 mark] Astigmatism Hypermetropia Myopia
- June 2019, Paper 3 Medical physics, Q01.2 (4 marks): Figure 1 shows the position of a number plate at a distance of 20.5 m in front of the driver’s unaided eye. Figure 2 shows the same situation and the position o
- June 2019, Paper 3 Medical physics, Q01.3 (5 marks): An optician considers the use of three different lenses, A, B and C, for use by the driver when driving. Power of A = ─2.18D Power of B = ─1.77D Power of C = +1
- June 2017, Paper 3 Medical physics, Q01.1 (2 marks): Explain why the unaided defective eye cannot form a clearly focused image of the object placed 24 cm from the eye. [2 marks]
- June 2017, Paper 3 Medical physics, Q01.2 (3 marks): An object is placed 24 cm from the spectacle lens. Calculate the distance of the image formed from the spectacle lens. Give your answer to a suitable number of
- June 2017, Paper 3 Medical physics, Q01.3 (1 mark): What is the name for the position where the image is formed by the spectacle lens? Tick () the correct answer. [1 mark] The eye’s aided far point The eye’s aid
- June 2017, Paper 3 Medical physics, Q01.4 (3 marks): Draw a ray diagram to show how this spectacle lens forms an image of the object placed 24 cm from the spectacle lens. On your diagram clearly label the object,
- Specimen, Paper 3 Medical physics, Q01.1 (2 marks): State what is meant by the principal focus and the power of a converging lens. [2 mark 0 1 . 1
- Specimen, Paper 3 Medical physics, Q01.2 (2 marks): Complete the ray diagram below to show the formation of an image of a real object O by a diverging lens. Label the image clearly. [2 mark 0 1 . 2
- Specimen, Paper 3 Medical physics, Q01.3 (1 mark): State the defect of vision that would be corrected using a diverging lens. [1 mark] 0 1 . 3
- Specimen, Paper 3 Medical physics, Q01.4 (2 marks): A diverging lens of focal length −0.33 m is used to view a real object placed 0.25 m from the lens. Calculate the distance from the lens to the image. [2 marks]
- June 2015, PHYA5 Medical physics (old spec), Q1(a)(i) (1 mark): What is this defect of vision? Tick () the correct answer. [1 mark] astigmatism hypermetropia / long sight myopia / short sight
- June 2015, PHYA5 Medical physics (old spec), Q1(a)(ii) (1 mark): On Figure 1, draw in front of the eye a suitable lens to correct this type of defect of vision. [1 mark]
- June 2015, PHYA5 Medical physics (old spec), Q1(a)(iii) (2 marks): Complete the new diagram by drawing the path of the two rays from the distant object as they pass through the correcting lens and the eye. [2 marks]
- June 2015, PHYA5 Medical physics (old spec), Q1(b)(i) (1 mark): Explain why the focal length of the correcting lens used should be –0.75 m. [1 mark]
- June 2015, PHYA5 Medical physics (old spec), Q1(b)(ii) (1 mark): Calculate the power of this correcting lens. [1 mark] power = D
- June 2015, PHYA5 Medical physics (old spec), Q1(b)(iii) (3 marks): The unaided near point of the defective eye is 0.15 m. Calculate the distance of the aided near point from the eye when the lens of focal length –0.75 m is used
- June 2014, PHYA5 Medical physics (old spec), Q1(b)(i) (3 marks): Find the image distance of the image formed by the correcting lens. Give your answer to an appropriate number of significant figures. [3 marks] image distance c
- June 2014, PHYA5 Medical physics (old spec), Q1(b)(ii) (1 mark): State what this image distance represents. [1 mark]
- June 2014, PHYA5 Medical physics (old spec), Q1(c) (1 mark): State the defect of vision which is corrected using a converging lens. [1 mark]
- June 2014, PHYA5 Medical physics (old spec), Q1(d) (2 marks): Draw a labelled ray diagram below to show how the lens in part (b) forms the image of the small real object. Clearly label the image and principal foci of the l
- June 2012, PHYA5 Medical physics (old spec), Q1(c)(i) (1 mark): A patient’s eye is astigmatic. State the effect of astigmatism on the image produced by the defective eye. (1 mark)
- June 2012, PHYA5 Medical physics (old spec), Q1(c)(ii) (1 mark): State the usual cause of astigmatism. (1 mark)
- June 2012, PHYA5 Medical physics (old spec), Q1(c)(iii) (1 mark): State the shape of lens used to correct astigmatism. (1 mark)
- June 2011, PHYA5 Medical physics (old spec), Q1(a) (2 marks): A person suffering from long sight has an unaided near point 63cm from the eye. Figure 1 shows three diagrams not drawn to scale. The first two diagrams show ra
- June 2011, PHYA5 Medical physics (old spec), Q1(b) (3 marks): Calculate the focal length of the correcting lens, stating the answer to the appropriate number of significant figures. answer = m (3 marks)
- June 2010, PHYA5 Medical physics (old spec), Q1(a) (2 marks): Complete the ray diagram to show the formation of the image of a real object by a diverging lens. (2 marks) object F F
- June 2010, PHYA5 Medical physics (old spec), Q1(b) (1 mark): Define the power of a lens. (1 mark)
- June 2010, PHYA5 Medical physics (old spec), Q1(c)(i) (1 mark): Name this defect of vision. (1 mark)
- June 2010, PHYA5 Medical physics (old spec), Q1(c)(ii) (3 marks): The defective eye has an unaided near point at 0.15m from the eye. Calculate the aided near point distance, giving your answer to an appropriate number of signi
- June 2010, PHYA5 Medical physics (old spec), Q1(d) (1 mark): Another person was found to suffer from astigmatism. State the format of the prescription to correct this defect. (1 mark)
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