# Topic Questions: 1 understand that photoelectrons may be emitted from a metal surface when it is illuminated by electromagnetic radiation — 9702 P4 Photoelectric effect > 3 9702 P4 Photoelectric effect topic questions (5 marks) on 1 understand that photoelectrons may be emitted… — 3 papers, 2025–2026. Open the exact question… - Canonical HTML: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/1-understand-that-photoelectrons-may-be-emitted-from-a-metal-surface-when-it-is/ - Markdown mirror: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/1-understand-that-photoelectrons-may-be-emitted-from-a-metal-surface-when-it-is/index.md --- CIE IAL · Physics · 9702 P4 · Photoelectric effect 3 9702 P4 Photoelectric effect topic questions are tagged to this syllabus point across 3 papers (2025–2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved. - 3 topic questions - 3 papers - 5 tagged marks - 25.0% of topic questions - 18.5% of topic marks - 2025–2026 - Syllabus 2025–2027 - [All 9702 P4 Photoelectric effect topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/) - [All paper codes](https://www.examsci.com/topics/) Core finding **This Photoelectric effect syllabus point appears in 3 9702 P4 papers across 2025–2026, contributing 3 topic questions and 5 marks.** The most recent appearance is 9702/44 May/June 2026. That equals 25.0% of the 12 topic questions and 18.5% of the 27 marks tagged to Photoelectric effect. Only parts tagged to this subtopic are counted, so a four-part question can contribute one item and one part's marks. The table lists every matching question, its tagged parts and marks, with a link back to the paper page. Sessions are newest first, so the statement can be traced back through the full paper history. ## Topic questions by session Newest sessions first. Parts and marks count only the parts tagged to this subtopic; “x of y parts” shows how much of the question is tagged elsewhere. Select the paper cell to open the matching question on the paper page, or use **Go to Practice Hub** to answer that exact question in the Interactive Practice Hub. | Paper | Question | Type | Parts | Marks | Difficulty | Practice | | --- | --- | --- | --- | --- | --- | --- | | [**9702/44** May/June 2026 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2026-may-june-9702-44/#q-8) | **Q8** Photoelectric Effect and Work Function - CIE A-Level Physics 2026 Jun Paper 44 Q8 | FRQ | 1 of 5 parts ((a)(i)) | 1 of 11 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=92110ebb-9742-4a78-840d-cc028724e060&question_id=5acde1fe-879c-4696-8ea3-01e6d65a9527&source_detail=9702%2F44+May%2FJune+2026) | | [**9702/44** October/November 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2025-october-november-9702-44/#q-9) | **Q9** Photoelectric Effect and Stopping Potentials - CIE A Level Physics 2025 Nov Paper 44 Q9 | FRQ | 1 of 4 parts ((a)) | 2 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=188bcbde-77c7-4443-9dec-bdf3fb0f0df1&question_id=14e35ad3-2082-4600-9fd9-3647e62c156a&source_detail=9702%2F44+October%2FNovember+2025) | | [**9702/42** May/June 2025 · CIE IAL](https://www.examsci.com/past-papers/cie-ial/physics/9702-paper-4/2025-may-june-9702-42/#q-9) | **Q9** Photoelectric Effect and Stopping Potential - CIE A-Level Physics 2025 May/June Paper 42 Q9 | FRQ | 1 of 3 parts ((a)) | 2 of 8 on the paper | Easy | [Go to Practice Hub](https://www.examsci.com/practice?set_id=befea6ad-6b61-4f2f-bc8d-ff860277e016&question_id=2081990f-f69c-4330-ae46-82f431857ff8&source_detail=9702%2F42+May%2FJune+2025) | ## Related topic questions in Photoelectric effect - [2 understand and use the terms threshold frequency and threshold wavelength](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/2-understand-and-use-the-terms-threshold-frequency-and-threshold-wavelength/) — 3 question items · 3 papers — 5 marks · 2025–2026 - [3 explain photoelectric emission in terms of photon energy and work function energy](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/3-explain-photoelectric-emission-in-terms-of-photon-energy-and-work-function-energy/) — 5 question items · 3 papers — 11 marks · 2025–2026 - [4 recall and use $hf = \Phi + \frac{1}{2}mv_{max}^2$](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/4-recall-and-use-hf-phi-frac-1-2-mv-max-2/) — 6 question items · 3 papers — 17 marks · 2025–2026 ## Topic question rules and edge cases **How many topic questions cover this syllabus point?** 3 question stems cover this subtopic across 3 papers, but only 3 tagged parts and 5 marks belong to it. Other parts of the same questions are assessed under different statements and are excluded from this page. **Which papers include this subtopic?** The table lists every matching session from 2025–2026. Each row links to the question anchor on the paper page, where the full paper context and practice entry point are available. **Why can one question appear under several subtopics?** The parts of one question can assess different syllabus statements. Each part is counted under its own subtopics, so the same question stem can appear on several subtopic pages while each page lists only the parts and marks tagged to that statement. **Can I practise these questions with AI marking?** Yes. Open a paper from the table and use the Interactive Practice Hub entry point. The page itself is static HTML so search engines and retrieval agents can read the full question list without executing JavaScript. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/photoelectric-effect/1-understand-that-photoelectrons-may-be-emitted-from-a-metal-surface-when-it-is/