P3.2· 27 questions · 27 marks · 32 min · 2019–2025· Multiple choice
Every Cambridge IGCSE Sciences - Co-ordinated (9-1) Paper 2 question on light, laid out as 11 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.

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11 / 11Answers below. Sit the paper first if you are practising.
Pastlit
Sciences - Co-ordinated (9-1) 0973 · Light — Paper 2
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | A | 1 | 0973/21 May/June 2019 |
| 2 | B | 1 | 0973/22 May/June 2019 |
| 3 | C | 1 | 0973/22 May/June 2019 |
| 4 | C | 1 | 0973/21 Oct/Nov 2019 |
| 5 | A | 1 | 0973/21 May/June 2020 |
| 6 | C | 1 | 0973/22 May/June 2020 |
| 7 | A | 1 | 0973/22 May/June 2020 |
| 8 | D | 1 | 0973/21 Oct/Nov 2020 |
| 9 | A | 1 | 0973/21 May/June 2021 |
| 10 | A | 1 | 0973/22 May/June 2021 |
| 11 | C | 1 | 0973/21 Oct/Nov 2021 |
| 12 | C | 1 | 0973/21 Oct/Nov 2021 |
| 13 | B | 1 | 0973/21 May/June 2022 |
| 14 | A | 1 | 0973/22 May/June 2022 |
| 15 | D | 1 | 0973/21 Oct/Nov 2022 |
| 16 | B | 1 | 0973/21 May/June 2023 |
| 17 | C | 1 | 0973/21 May/June 2023 |
| 18 | B | 1 | 0973/22 May/June 2023 |
| 19 | A | 1 | 0973/22 May/June 2023 |
| 20 | C | 1 | 0973/21 Oct/Nov 2023 |
| 21 | C | 1 | 0973/21 May/June 2024 |
| 22 | C | 1 | 0973/22 May/June 2024 |
| 23 | B | 1 | 0973/21 Oct/Nov 2024 |
| 24 | D | 1 | 0973/21 May/June 2025 |
| 25 | A | 1 | 0973/22 May/June 2025 |
| 26 | A | 1 | 0973/21 Oct/Nov 2025 |
| 27 | D | 1 | 0973/21 Oct/Nov 2025 |
34 In the diagrams, F is one principal focus of the converging lens. Which diagram shows the lens being used as a magnifying glass? A B F F C D F F
1 marks
Answer: A
33 A student stands in front of a plane mirror on a wall. Which statement about the image of the student is not correct? A The image is laterally inverted. B The image is smaller than the student. C The image is upright. D The student and the image are equal distances from the mirror.
1 marks
Answer: B
35 A sports field is next to a large school building. A student at the far side of the sports field sees a groundsman hit a pole with a hammer. school building student hammer pole about 400 m After the hammer hits the pole, the student hears two bangs. Why does the student hear two bangs? first bang caused by second bang caused by A sound of hammer hitting pole sound of pole hitting hammer B sound reaching the student’s left ear sound reaching the student’s right ear C sound reaching student directly sound reflected back from school building D sound reflected back from school building sound reaching student directly
1 marks
Answer: C
34 A glass block is surrounded by air. Light travelling in the glass block reaches the edge of the block. The critical angle of the glass is 42°. NOT TO air SCALE glass i ray of light Which row shows an angle of incidence i of the light and what happens to the light when it reaches the edge of the glass block at this angle of incidence? i what happens to the light A 30o totally internally reflected B 45o refracted C 60o totally internally reflected D 75o refracted
1 marks
Answer: C
35 Which ray diagram represents the formation of a virtual image I of an object O? A B I O O I C D O I O I
1 marks
Answer: A
33 The diagram shows light passing through a plastic block. 55° plastic block 40° 40° 55° What is the refractive index of the plastic? A 0.73 B 0.78 C 1.27 D 1.38
1 marks
Answer: C
34 Which ray diagram represents the formation of a virtual image I of an object O? A B I O O I C D O I O I
1 marks
Answer: A
35 The diagram shows a ray of light travelling in glass from point P. Angle x is greater than the critical angle. In which labelled direction does the ray continue? A B air glass C x P D
1 marks
Answer: D
35 The diagram represents the surface of a transparent liquid. Two rays of light are travelling in the liquid. They both reach the surface. The path of each ray is shown. air liquid 50° 55° What is the critical angle for this liquid? A 35 B 40 C 50 D 55
1 marks
Answer: A
35 The diagram represents the surface of a transparent liquid. Two rays of light are travelling in the liquid. They both reach the surface. The path of each ray is shown. air liquid 50° 55° What is the critical angle for this liquid? A 35 B 40 C 50 D 55
1 marks
Answer: A
35 The diagram shows a ray of light striking a plane mirror. ray of light 20° plane mirror What is the angle of reflection? A 20 B 40 C 70 D 90
1 marks
Answer: C
36 Which diagram shows a converging lens forming a real image of an object O? A B O O C D O O
1 marks
Answer: C
33 The diagram shows how a thin, converging lens forms an image of an object. One principal focus of the lens is labelled F. lens object F How is the image described? A enlarged, upright and real B enlarged, upright and virtual C diminished, inverted and real D diminished, inverted and virtual
1 marks
Answer: B
34 Light enters a glass block at an angle of incidence of 41. The light bends toward the normal. The angle between the refracted ray and the glass-air boundary is 62. glass 62° air 41° Which expression is equal to the refractive index of the glass? sin 41 sin 41 sin 49 sin 49 A B C D sin 28 sin 62 sin 28 sin 62
1 marks
Answer: A
34 The critical angle for diamond in air is 25. Light travels faster in air than in diamond. Which diagram shows the path of light passing from diamond into air? A B air air diamond diamond 30° 20° C D air air diamond diamond 30° 20°
1 marks
Answer: D
32 A student stands in front of a plane mirror on a wall. Which statement about the image of the student is not correct? A The image is laterally inverted (left to right). B The image is smaller than the student. C The image is upright. D The student and the image are equal distances from the mirror.
1 marks
Answer: B
34 The diagram shows a ray of light passing from air into plastic. The sizes of four angles are given. 30° 60° air plastic 72° 18° The table gives the value of the sine of each angle. angle / ° sine 18 0.31 30 0.50 60 0.87 72 0.95 What is the refractive index of the plastic? A 0.62 B 0.92 C 1.6 D 1.7
1 marks
Answer: C
34 An object is placed in front of a plane mirror on a wall. What are the characteristics of the image formed? A same size as object and inverted top to bottom B same size as object and laterally inverted (left to right) C smaller than object and inverted top to bottom D smaller than object and laterally inverted (left to right)
1 marks
Answer: B
35 A ray of light in air enters glass at an angle of incidence of 34°. The refractive index of glass is 1.5. What is the angle of refraction of the ray of light in the glass? A 22° B 24° C 56° D 57°
1 marks
Answer: A
34 When light passes from air into glass its speed decreases but its frequency remains constant. Light travelling in air enters a glass block at an angle of incidence that is greater than 0. Which row describes what happens to the direction and what happens to the wavelength of the light? direction wavelength A moves away from the normal decreases B moves away from the normal increases C moves towards the normal decreases D moves towards the normal increases
1 marks
Answer: C
34 A thin converging lens produces a real image of an object. What happens to the image as the object is moved away from the lens? A It becomes larger and stays inverted. B It becomes larger and stays upright. C It becomes smaller and stays inverted. D It becomes smaller and stays upright.
1 marks
Answer: C
34 A plane mirror is fixed to a vertical wall and forms an image of an object. What are the characteristics of the image? A enlarged and upright B enlarged and inverted C same size as the object and upright D same size as the object and inverted
1 marks
Answer: C
33 A ray of light travels from glass into air. normal air glass ray of light In which direction is the light refracted and how does the speed of the light change? direction of refracted light speed of light A bends away from the normal decreases B bends away from the normal increases C bends towards the normal decreases D bends towards the normal increases
1 marks
Answer: B
34 The diagram shows a ray of light passing from medium P to medium Q and then to medium R. The speeds of light in each of the mediums P, Q and R are cP, cQ and cR respectively. P Q R Which list compares the speeds of light in the three mediums in order from lowest to highest? A cP cQ cR B cP cR cQ C cQ cP cR D cR cQ cP
1 marks
Answer: D
34 What is the difference between a real image and a virtual image? A A real image can be shown on a screen, but a virtual image cannot. B A real image is always formed by a magnifying glass. C A real image is always formed by a plane mirror. D A virtual image can be shown on a screen, but a real image cannot.
1 marks
Answer: A
33 In the diagrams, F is one principal focus of the converging lens. Which diagram shows the use of a lens as a magnifying glass? A B F F C D F F
1 marks
Answer: A
35 A ray of light strikes the boundary between water and air. Which statement describes when the angle of incidence is equal to the critical angle? A The light passes from air into water and no light is reflected. B The light passes from air into water and the angle of refraction is 90°. C The light passes from water into air and no light is reflected. D The light passes from water into air and the angle of refraction is 90°.
1 marks
Answer: D