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Diffraction past paper questions

Physics 9702 · Superposition. Waves spreading through a gap and how gap width matters

It came up in 66 of 140 papers, for about 1 marks a paper when it does. It last came up in October/November 2025.

Often set with Diffraction grating, Wave terms and phase difference, Coherence and interference conditions, Polarisation.

68 questions, newest first

1. 9702/12/O/N/25 Question 28 · 1 mark
2. 9702/21/O/N/25 Question 4 part (a) · 2 marks
3. 9702/23/O/N/25 Question 4 part (a) · 2 marks
4. 9702/13/M/J/25 Question 30 · 1 mark
5. 9702/23/M/J/25 Question 6 part (a) · 1 mark
6. 9702/12/F/M/25 Question 28 · 1 mark
7. 9702/12/O/N/24 Question 29 · 1 mark
8. 9702/13/O/N/24 Question 30 · 1 mark
9. 9702/12/M/J/24 Question 22 · 1 mark
10. 9702/13/M/J/24 Question 28 · 1 mark
11. 9702/11/O/N/23 Question 27 · 1 mark
12. 9702/12/O/N/23 Question 27 · 1 mark
13. 9702/13/O/N/23 Question 27 · 1 mark
14. 9702/21/O/N/23 Question 4 part (d) · 2 marks
15. 9702/22/O/N/23 Question 5 part (b) · 2 marks
16. 9702/11/M/J/23 Question 27 · 1 mark
17. 9702/12/M/J/23 Question 27 · 1 mark
18. 9702/13/M/J/23 Question 27 · 1 mark
19. 9702/12/F/M/23 Question 27 · 1 mark
20. 9702/11/O/N/22 Question 28 · 1 mark
21. 9702/12/O/N/22 Question 28 · 1 mark
22. 9702/13/O/N/22 Question 27 · 1 mark
23. 9702/11/M/J/22 Question 28 · 1 mark
24. 9702/12/M/J/22 Question 28 · 1 mark
25. 9702/13/M/J/22 Question 29 · 1 mark
26. 9702/12/F/M/22 Question 26 · 1 mark
27. 9702/11/O/N/21 Question 27 · 1 mark
28. 9702/12/O/N/21 Question 28 · 1 mark
29. 9702/13/O/N/21 Question 28 · 1 mark
30. 9702/11/M/J/21 Question 27 · 1 mark
31. 9702/12/M/J/21 Question 27 · 1 mark
32. 9702/13/M/J/21 Question 28 · 1 mark
33. 9702/21/M/J/21 Question 4 part (c) · 2 marks
34. 9702/12/F/M/21 Question 27 · 1 mark
35. 9702/11/O/N/20 Question 27 · 1 mark
36. 9702/12/O/N/20 Question 28 · 1 mark
37. 9702/13/O/N/20 Question 28 · 1 mark
38. 9702/11/M/J/20 Question 28 · 1 mark
39. 9702/12/M/J/20 Question 28 · 1 mark
40. 9702/13/M/J/20 Question 28 · 1 mark
41. 9702/12/F/M/20 Question 27 · 1 mark
42. 9702/22/F/M/20 Question 4 part (b(i)) · 2 marks
43. 9702/11/O/N/19 Question 27 · 1 mark
44. 9702/11/M/J/19 Question 28 · 1 mark
45. 9702/13/M/J/19 Question 27 · 1 mark
46. 9702/22/M/J/19 Question 4 part (c(i)) · 2 marks
47. 9702/11/O/N/18 Question 27 · 1 mark
48. 9702/12/O/N/18 Question 28 · 1 mark
49. 9702/13/O/N/18 Question 27 · 1 mark
50. 9702/13/M/J/18 Question 25 · 1 mark
51. 9702/21/M/J/18 Question 5 part (a(i)) · 1 mark
52. 9702/12/F/M/18 Question 29 · 1 mark
53. 9702/11/O/N/17 Question 24 · 1 mark
54. 9702/11/O/N/17 Question 29 · 1 mark
55. 9702/12/O/N/17 Question 28 · 1 mark
56. 9702/12/O/N/17 Question 29 · 1 mark
57. 9702/13/O/N/17 Question 29 · 1 mark
58. 9702/22/M/J/17 Question 6 part (a(i)) · 2 marks
59. 9702/23/M/J/17 Question 5 part (a(i)) · 2 marks
60. 9702/11/O/N/16 Question 27 · 1 mark
61. 9702/13/O/N/16 Question 27 · 1 mark
62. 9702/21/O/N/16 Question 5 part (a) · 2 marks
63. 9702/22/O/N/16 Question 4 part (a) · 2 marks
64. 9702/23/O/N/16 Question 5 part (a) · 2 marks
65. 9702/11/M/J/16 Question 25 · 1 mark
66. 9702/12/M/J/16 Question 26 · 1 mark
67. 9702/13/M/J/16 Question 26 · 1 mark
68. 9702/12/F/M/16 Question 23 · 1 mark

More in Superposition: Principle of superposition, Stationary wave experiments, Nodes and antinodes, Coherence and interference conditions, Two-source interference experiments, Double slit, Diffraction grating.

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