Physics 9702 · 22 Quantum physics
22.1 Energy and momentum of a photon
Understand the particulate nature of radiation, define photons, and calculate energy and momentum.
- Questions
- 51
- Years
- 2015–2026
- Multiple choice
- 1
- Written answer
- 50
- Average marks
- 8.9
Where this subtopic appears
- Paper 4variants 41, 42, 43, 4448
- Paper 2variants 22, 232
- Paper 1variants 121
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 5 | – | 5 |
| 2025 | 1 | – | 1 | 2 |
| 2023 | – | 1 | 3 | 4 |
| 2022 | 1 | 3 | 2 | 6 |
| 2021 | 1 | 1 | 2 | 4 |
| 2020 | 1 | 2 | 2 | 5 |
| 2019 | 1 | 4 | – | 5 |
| 2018 | – | 3 | 3 | 6 |
| 2017 | 2 | 2 | 2 | 6 |
| 2016 | – | – | 2 | 2 |
| 2015 | – | 5 | 1 | 6 |
