# 9702 P4 Standard candles Topic Questions > CIE IAL 9702 P4: every Standard candles topic question from 8 papers (2025–2026), grouped by syllabus point. 11 questions, 29 marks, with direct links into… - Canonical HTML: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/ - Markdown mirror: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/index.md --- CIE IAL · Physics · 9702 P4 · A Level Every 9702 P4 Standard candles topic question from the 2025–2027 syllabus, drawn from 8 papers (2025–2026) and grouped by syllabus point. Each row opens a page listing the exact question numbers, marks and a direct link into the paper. These are questions by topic, not full papers, so you can revise one topic at a time. - 9702 P4 - 4 subtopics - 11 topic questions - 8 papers - 29 tagged marks - [Back to Standard candles](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/) - [All paper codes](https://www.examsci.com/topics/) Core finding **2 recall and use the inverse square law for radiant flux intensity F… is the most frequently assessed subtopic in Standard candles, with 7 topic questions and 19 marks across 7 papers.** 1 understand the term luminosity as the total power of… follows with 3 topic questions and 9 marks. The topic contains 4 subtopics, 11 topic questions and 29 marks in total. Rows count only the parts tagged to that subtopic, keep the same colour in both charts and repeat paper count, tagged marks and year range in the native table. ## Topic question count and mark distribution Subtopics are on the vertical axis and sorted from highest to lowest. Only the parts whose knowledge graph matches a subtopic are counted for it, and percentages are each row's share of the tagged total in that chart. A part tagged to several subtopics is counted in each bar, so the bars are not a partition of the topic total. ### Questions by subtopic question items - [2 recall and use the inverse square law for radiant flux intensity F in terms of the luminosity L of the source $F = L / (4\pi d^2)$](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/2-recall-and-use-the-inverse-square-law-for-radiant-flux-intensity-f-in-terms-of-the/) (7 papers) — 7 · 50.0% - [1 understand the term luminosity as the total power of radiation emitted by a star](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/1-understand-the-term-luminosity-as-the-total-power-of-radiation-emitted-by-a-star/) (3 papers) — 3 · 21.4% - [3 understand that an object of known luminosity is called a standard candle](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/3-understand-that-an-object-of-known-luminosity-is-called-a-standard-candle/) (2 papers) — 2 · 14.3% - [4 understand the use of standard candles to determine distances to galaxies](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/4-understand-the-use-of-standard-candles-to-determine-distances-to-galaxies/) (2 papers) — 2 · 14.3% ### Marks by subtopic marks - [2 recall and use the inverse square law for radiant flux intensity F in terms of the luminosity L of the source $F = L / (4\pi d^2)$](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/2-recall-and-use-the-inverse-square-law-for-radiant-flux-intensity-f-in-terms-of-the/) (7 papers) — 19 · 51.4% - [1 understand the term luminosity as the total power of radiation emitted by a star](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/1-understand-the-term-luminosity-as-the-total-power-of-radiation-emitted-by-a-star/) (3 papers) — 9 · 24.3% - [4 understand the use of standard candles to determine distances to galaxies](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/4-understand-the-use-of-standard-candles-to-determine-distances-to-galaxies/) (2 papers) — 5 · 13.5% - [3 understand that an object of known luminosity is called a standard candle](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/3-understand-that-an-object-of-known-luminosity-is-called-a-standard-candle/) (2 papers) — 4 · 10.8% ## Subtopic comparison matrix Curriculum order is by syllabus number, then alphabetically. Every row links to the matching past-paper question list. | Subtopic | Topic questions | Papers | Marks | Years | | | --- | --- | --- | --- | --- | --- | | **[1 understand the term luminosity as the total power of radiation emitted by a star](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/1-understand-the-term-luminosity-as-the-total-power-of-radiation-emitted-by-a-star/)** | 3 | 3 | 9 | 2025–2026 | [Open topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/1-understand-the-term-luminosity-as-the-total-power-of-radiation-emitted-by-a-star/) | | **[2 recall and use the inverse square law for radiant flux intensity F in terms of the luminosity L of the source $F = L / (4\pi d^2)$](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/2-recall-and-use-the-inverse-square-law-for-radiant-flux-intensity-f-in-terms-of-the/)** | 7 | 7 | 19 | 2025–2026 | [Open topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/2-recall-and-use-the-inverse-square-law-for-radiant-flux-intensity-f-in-terms-of-the/) | | **[3 understand that an object of known luminosity is called a standard candle](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/3-understand-that-an-object-of-known-luminosity-is-called-a-standard-candle/)** | 2 | 2 | 4 | 2025–2026 | [Open topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/3-understand-that-an-object-of-known-luminosity-is-called-a-standard-candle/) | | **[4 understand the use of standard candles to determine distances to galaxies](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/4-understand-the-use-of-standard-candles-to-determine-distances-to-galaxies/)** | 2 | 2 | 5 | 2025–2026 | [Open topic questions](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/4-understand-the-use-of-standard-candles-to-determine-distances-to-galaxies/) | ## Browse every topic question - [1 understand the term luminosity as the total power of radiation emitted by a star](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/1-understand-the-term-luminosity-as-the-total-power-of-radiation-emitted-by-a-star/) — 3 question items · 3 papers — 9 marks · 2025–2026 - [2 recall and use the inverse square law for radiant flux intensity F in terms of the luminosity L of the source $F = L / (4\pi d^2)$](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/2-recall-and-use-the-inverse-square-law-for-radiant-flux-intensity-f-in-terms-of-the/) — 7 question items · 7 papers — 19 marks · 2025–2026 - [3 understand that an object of known luminosity is called a standard candle](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/3-understand-that-an-object-of-known-luminosity-is-called-a-standard-candle/) — 2 question items · 2 papers — 4 marks · 2025–2026 - [4 understand the use of standard candles to determine distances to galaxies](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/4-understand-the-use-of-standard-candles-to-determine-distances-to-galaxies/) — 2 question items · 2 papers — 5 marks · 2025–2026 ## Other topics in 9702 P4 - [Capacitors and capacitance 17 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/capacitors-and-capacitance/) - [Centripetal acceleration 25 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/centripetal-acceleration/) - [Characteristics of alternating currents 21 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/characteristics-of-alternating-currents/) - [Concept of a magnetic field 3 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/concept-of-a-magnetic-field/) - [Damped and forced oscillations, resonance 7 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/damped-and-forced-oscillations-resonance/) - [Discharging a capacitor 16 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/discharging-a-capacitor/) - [Electric field of a point charge 8 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-field-of-a-point-charge/) - [Electric fields and field lines 7 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-fields-and-field-lines/) - [Electric force between point charges 12 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-force-between-point-charges/) - [Electric potential 26 question items](https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/electric-potential/) ## Topic question rules and edge cases **How many subtopics does Standard candles contain?** This page lists 4 subtopics tagged to the current syllabus. They are ordered by syllabus number, then alphabetically, and each row opens a page of matching past-paper questions. **How are the subtopic question and mark totals calculated?** A multiple-choice question contributes one item and its marks to every subtopic it is tagged with. A structured question contributes one item per tagged part, and that part’s marks; untagged parts of the same question are not counted here. A part tagged to several subtopics therefore appears under each of them. **Why do some subtopics have no numbered prefix?** Practical-skills statements and some syllabus bullets are unnumbered. Numbered statements come first; unnumbered statements and ties are sorted alphabetically. **Is the LaTeX rendered without JavaScript?** Yes. Subtopics that contain formulas are converted to static KaTeX HTML during the build, and the KaTeX stylesheet is served from the same site. --- Full page with native tables, bar charts and Practice Hub links: https://www.examsci.com/topics/cie-ial/physics/9702-paper-4/standard-candles/