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Stellar radii past paper questions

A2 Physics 9702 · Astronomy and cosmology. 1 recall and use Wien’s displacement law λmax ∝ 1 / T to estimate the peak surface temperature of a star 2 use the Stefan–Boltzmann law L = 4πσr 2 T 4 3 use Wien’s displacement law and the Stefan–Boltzmann law to estimate the radius of a star

In Cambridge A Level A2 Physics 9702, Stellar radii came up in 19 of the 42 papers on Paperstreak, for about 4 marks a paper when it does. It last came up in October/November 2025.

Often set with Standard candles, Hubble’s law and the Big Bang theory, Mass defect and nuclear binding energy, Kinetic theory of gases.

19 questions, newest first

1. 9702/41/O/N/25 Question 9 parts (a) (b) · 5 marks
2. 9702/42/O/N/25 Question 9 part (c(ii)) · 2 marks
3. 9702/43/O/N/25 Question 9 parts (a) (b) · 5 marks
4. 9702/41/M/J/25 Question 10 part (b(iii)) · 2 marks
5. 9702/43/M/J/25 Question 10 part (b(iii)) · 2 marks
6. 9702/42/F/M/25 Question 10 part (b(iii)) · 2 marks
7. 9702/42/O/N/24 Question 2 part (c(iii)) · 2 marks
8. 9702/41/M/J/24 Question 10 parts (b(i)) (b(ii)) · 4 marks
9. 9702/43/M/J/24 Question 10 parts (b(i)) (b(ii)) · 4 marks
10. 9702/42/F/M/24 Question 10 parts (a(i)) (a(iii)) (b(iii)) · 5 marks
11. 9702/41/O/N/23 Question 3 part (c(ii)) · 2 marks
12. 9702/42/O/N/23 Question 10 parts (a) (b(iii)) · 6 marks
13. 9702/43/O/N/23 Question 3 part (c(ii)) · 2 marks
14. 9702/42/M/J/23 Question 9 part (c(ii)) · 2 marks
15. 9702/41/O/N/22 Question 9 parts (b(ii)) (c) · 5 marks
16. 9702/43/O/N/22 Question 9 parts (b(ii)) (c) · 5 marks
17. 9702/41/M/J/22 Question 10 parts (a) (b(i)) (b(ii)) · 5 marks
18. 9702/43/M/J/22 Question 10 parts (a) (b(i)) (b(ii)) · 5 marks
19. 9702/42/F/M/22 Question 12 parts (d) (e) · 3 marks

More in Astronomy and cosmology: Standard candles, Hubble’s law and the Big Bang theory.

Questions and mark schemes from Cambridge International past papers. Paperstreak isn't affiliated with Cambridge.