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Intensity past paper questions

Physics 9702 · Waves. Energy carried by a wave; intensity as power per area and amplitude squared

It came up in 35 of 140 papers, for about 2 marks a paper when it does. It last came up in October/November 2025.

Often set with Wave equation, Wave terms and phase difference, Coherence and interference conditions, Principle of superposition.

35 questions, newest first

1. 9702/12/O/N/25 Question 26 · 1 mark
2. 9702/22/M/J/25 Question 3 part (d) · 2 marks
3. 9702/11/M/J/24 Question 19 · 1 mark
4. 9702/22/M/J/24 Question 1 part (b(i)) · 3 marks
5. 9702/12/F/M/24 Question 28 · 1 mark
6. 9702/22/F/M/24 Question 1 part (c) · 3 marks
7. 9702/21/O/N/23 Question 5 part (b) · 3 marks
8. 9702/23/O/N/23 Question 6 parts (b(i)) (b(ii)) · 3 marks
9. 9702/23/M/J/23 Question 4 part (c) · 3 marks
10. 9702/22/F/M/23 Question 5 part (a(ii)) · 3 marks
11. 9702/21/O/N/22 Question 4 part (c(ii)) · 3 marks
12. 9702/23/O/N/22 Question 4 part (c) · 2 marks
13. 9702/11/M/J/22 Question 22 · 1 mark
14. 9702/12/M/J/22 Question 21 · 1 mark
15. 9702/23/M/J/22 Question 5 parts (a(i)) (a(ii)) · 3 marks
16. 9702/12/F/M/22 Question 20 · 1 mark
17. 9702/21/O/N/20 Question 5 part (b) · 3 marks
18. 9702/22/O/N/20 Question 5 part (c) · 2 marks
19. 9702/23/O/N/20 Question 5 part (a(ii)) · 2 marks
20. 9702/11/M/J/20 Question 22 · 1 mark
21. 9702/13/M/J/20 Question 22 · 1 mark
22. 9702/23/M/J/20 Question 4 part (e) · 2 marks
23. 9702/13/O/N/19 Question 25 · 1 mark
24. 9702/22/M/J/19 Question 4 part (b) · 2 marks
25. 9702/22/F/M/19 Question 5 part (b) · 2 marks
26. 9702/13/O/N/18 Question 21 · 1 mark
27. 9702/21/M/J/18 Question 4 part (b(iii)) · 2 marks
28. 9702/23/M/J/18 Question 5 part (a) · 1 mark
29. 9702/22/F/M/18 Question 4 part (b(iii)) · 2 marks
30. 9702/23/O/N/17 Question 4 part (c(i)) · 3 marks
31. 9702/12/F/M/17 Question 22 · 1 mark
32. 9702/13/M/J/16 Question 25 · 1 mark
33. 9702/21/M/J/16 Question 5 part (b) · 3 marks
34. 9702/23/M/J/16 Question 7 part (b(ii)) · 2 marks
35. 9702/22/F/M/16 Question 4 part (c(i)) · 2 marks

More in Waves: Wave terms and phase difference, Oscilloscope (CRO), Wave equation, Transverse and longitudinal waves, Doppler effect for sound, Electromagnetic spectrum, Polarisation.

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