plumiLight: CAIE IGCSE Physics questions
Every CAIE IGCSE Physics exam question on 3.2 Light, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Calculations
Q7(a)(i)
The whole paper ↗![June 2024 Paper 3, question 7(a)(i): Indicate the angle of reflection by drawing a letter R on Fig. 7.1. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-07-ai-qp.webp)
Q7(a)(ii)
The whole paper ↗![June 2024 Paper 3, question 7(a)(ii): State the size of the angle of reflection in Fig. 7.1. angle of reflection = ° [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-07-aii-qp.webp)
Q7(b)(i)
The whole paper ↗![June 2024 Paper 3, question 7(b)(i): On Fig. 7.2, locate the image of O by continuing the path of each ray. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-07-bi-qp.webp)
Q7(b)(ii)
The whole paper ↗![June 2024 Paper 3, question 7(b)(ii): Draw an arrow to represent the image of O. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-07-bii-qp.webp)
Q7(c)(i)
The whole paper ↗![June 2024 Paper 3, question 7(c)(i): The prism refracts the white light. State the name of the effect that produces a spectrum. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-07-ci-qp.webp)
Q7(c)(ii)
The whole paper ↗![June 2024 Paper 3, question 7(c)(ii): In the spectrum shown in Fig. 7.3, there are seven colours. List the seven colours in the order they appear between X and Z. X Z [2] [Total: 8]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-07-cii-qp.webp)
Q4(a)(i)
The whole paper ↗![June 2024 Paper 4, question 4(a)(i): State what is meant by ‘focal point’. [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062541-jun24-04-ai-qp.webp)
Q4(a)(ii)
The whole paper ↗
Q4(a)(iii)
The whole paper ↗![June 2024 Paper 4, question 4(a)(iii): Underline two words in the list that describe the image produced in (a)(ii). inverted real upright virtual [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062541-jun24-04-aiii-qp.webp)
Q4(b)(i)
The whole paper ↗![June 2024 Paper 4, question 4(b)(i): The speed of light in air is 3.0 × 108 m / s. Calculate the speed of light in the glass. speed in glass = [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062541-jun24-04-bi-qp.webp)
Q4(b)(ii)
The whole paper ↗![June 2024 Paper 4, question 4(b)(ii): State what happens to the wavelength of light as it passes into the lens. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062541-jun24-04-bii-qp.webp)
Q4(c)
The whole paper ↗
Q3(a)
The whole paper ↗![June 2024 Paper 6, question 3(a): Fig. 3.2 shows the height hO of the illuminated object. On Fig. 3.2, measure hO. hO = [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062561-jun24-03-a-qp.webp)
Q3(b)(i)
The whole paper ↗![June 2024 Paper 6, question 3(b)(i): On Fig. 3.1, measure the distance x. x = [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062561-jun24-03-bi-qp.webp)
All 41 questions on Light, as a list
- June 2024, Paper 1, Q19 (1 mark): The diagram shows a ray of light in glass incident on the surface between the glass and air. air glass What happens if the angle of incidence is made larger tha
- June 2024, Paper 1, Q20 (1 mark): Red light of frequency 430 1012 Hz has a wavelength of 700 10–9 m. What is possible for blue light? A a frequency of 190 1012 Hz and a wavelength of 450
- June 2024, Paper 2, Q17 (1 mark): The angle of incidence of a ray of light incident on a plane mirror is gradually increased. To the nearest degree, what is the maximum possible angle between th
- June 2024, Paper 2, Q18 (1 mark): Which conditions are necessary for light to be totally internally reflected? incident light angle of incidence A is in the less dense medium less than the criti
- June 2024, Paper 2, Q19 (1 mark): The diagram shows a ray of light passing from air into a transparent substance. 40.0 air transparent substance 30.0 What is the refractive index of the transp
- June 2024, Paper 2, Q20 (1 mark): The diagram shows a ray of light in an optical fibre. Which statement correctly explains the condition for the maximum transmission of light by the optical fibr
- June 2024, Paper 3, Q7(a)(i) (1 mark): Indicate the angle of reflection by drawing a letter R on Fig. 7.1. [1]
- June 2024, Paper 3, Q7(a)(ii) (1 mark): State the size of the angle of reflection in Fig. 7.1. angle of reflection = ° [1]
- June 2024, Paper 3, Q7(b)(i) (2 marks): On Fig. 7.2, locate the image of O by continuing the path of each ray. [2]
- June 2024, Paper 3, Q7(b)(ii) (1 mark): Draw an arrow to represent the image of O. [1]
- June 2024, Paper 3, Q7(c)(i) (1 mark): The prism refracts the white light. State the name of the effect that produces a spectrum. [1]
- June 2024, Paper 3, Q7(c)(ii) (2 marks): In the spectrum shown in Fig. 7.3, there are seven colours. List the seven colours in the order they appear between X and Z. X Z [2] [Total: 8]
- June 2024, Paper 4, Q4(a)(i) (2 marks): State what is meant by ‘focal point’. [2]
- June 2024, Paper 4, Q4(a)(ii) (1 mark): A student using the magnifying glass sees a magnified image of an object. On Fig. 4.1, mark: • a point X on the principal axis for a possible position of the ob
- June 2024, Paper 4, Q4(a)(iii) (1 mark): Underline two words in the list that describe the image produced in (a)(ii). inverted real upright virtual [1]
- June 2024, Paper 4, Q4(b)(i) (2 marks): The speed of light in air is 3.0 × 108 m / s. Calculate the speed of light in the glass. speed in glass = [2]
- June 2024, Paper 4, Q4(b)(ii) (1 mark): State what happens to the wavelength of light as it passes into the lens. [1]
- June 2024, Paper 4, Q4(c) (3 marks): Converging lenses are used in spectacles (glasses) to correct one problem with vision. State the name of the problem and explain how a converging lens is used t
- June 2024, Paper 6, Q3(a) (2 marks): Fig. 3.2 shows the height hO of the illuminated object. On Fig. 3.2, measure hO. hO = [2]
- June 2024, Paper 6, Q3(b)(i) (1 mark): On Fig. 3.1, measure the distance x. x = [1]
- June 2024, Paper 6, Q3(b)(ii) (1 mark): Calculate the scale ratio r using the equation r = u x , where u = 20.0 cm. r = [1]
- June 2024, Paper 6, Q3(c)(i) (1 mark): On Fig. 3.1, measure the distance y. y = cm [1]
- June 2024, Paper 6, Q3(c)(ii) (1 mark): Calculate the actual distance v between the lens and the screen using the equation v = r y. Use your value for r from (b)(ii). v = cm [1]
- June 2024, Paper 6, Q3(d) (2 marks): Calculate the focal length f of the lens using the equation uv f = (u + v) . Give your answer to a suitable number of significant figures for this type of exper
- June 2024, Paper 6, Q3(e) (2 marks): In this type of experiment, it can be difficult to judge the screen position that produces the clearest image. Suggest two precautions or techniques to overcome
- June 2024, Paper 6, Q3(f) (1 mark): Fig. 3.2 shows the shape of the illuminated object. The image of the object is enlarged. Draw a diagram to show the image that you would see on the screen. [1]
- Specimen, Paper 1, Q21 (1 mark): A parallel beam of light is incident on a plane mirror. Which diagram shows how the beam is reflected by the mirror? A B C D spectrum
- Specimen, Paper 1, Q22 (1 mark): A boy sees a fish in a lake. Which labelled path is taken by the light travelling from the fish to the boy’s eye? air water B A C D
- Specimen, Paper 1, Q23 (1 mark): Which diagram shows the formation of a real image of an object O placed in front of a converging lens? A B O O C D O O
- Specimen, Paper 2, Q21 (1 mark): Which statement describes monochromatic light? A light that never diffracts B light that has a single frequency C light that spreads out when shone through a gl
- Specimen, Paper 2, Q22 (1 mark): An object is placed 8.0 cm from a thin converging lens of focal length 5.0 cm. converging lens object F 5.0 cm 8.0 cm Which statement about the image formed by
- Specimen, Paper 2, Q23 (1 mark): A ray of light travels through transparent plastic to air. transparent plastic air NOT TO SCALE ¢ The ray of light enters the air travelling parallel to the sur
- Specimen, Paper 3, Q8(a) (1 mark): A ray of light refracts as it travels from air into glass, as shown in Fig. 8.1. normal ray of light x air w y glass z Fig. 8.1 State which angle w, x, y or z,
- Specimen, Paper 4, Q6(a)(i) (3 marks): On Fig. 6.1, draw two rays from the top of the object O to locate the image. Label the image I. [3]
- Specimen, Paper 4, Q6(a)(ii) (2 marks): The object O is moved to the left along the principal axis so that it is further from the lens than F1. Fig. 6.2 is a diagram of the new arrangement with the ne
- Specimen, Paper 4, Q6(b) (2 marks): Fig. 6.3 shows yellow light passing through a glass prism. Fig. 6.3 Blue light enters the prism along the same path as the yellow light. On Fig. 6.3, draw the p
- Specimen, Paper 6, Q3(a) (1 mark): The illuminated object consists of a triangular-shaped hole in a piece of card. Fig. 3.2 shows, full size, the illuminated object. card ho Fig. 3.2 Measure and
- Specimen, Paper 6, Q3(b) (2 marks): The distance between the illuminated object and the centre of the lens is set to u = 20.0 cm. The screen is moved until a focused image of the illuminated objec
- Specimen, Paper 6, Q3(c) (4 marks): Plot a graph of u / cm (y-axis) against M (x-axis). You do not have to start your axes at the origin (0, 0). [4]
- Specimen, Paper 6, Q3(d) (2 marks): Determine the gradient G of the graph. Show clearly on the graph how you obtained the necessary information. G = [2]
- Specimen, Paper 6, Q3(e) (2 marks): Describe one difficulty that might be experienced when measuring the height of the image hI. Suggest an improvement to the apparatus to reduce this difficulty.
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