Edexcel IAL · Physics · WPH12 · Waves and Particle Nature of Light

Topic Questions: 48 understand how to measure the refractive index of a solid material — WPH12 Waves and Particle Nature of Light

1 WPH12 Waves and Particle Nature of Light topic questions are tagged to this syllabus point across 1 papers (2026). Only the parts whose knowledge graph matches this syllabus statement are counted, and the table shows which parts of each question are involved.

1 topic questions 1 papers 3 tagged marks 0.2% of topic questions 0.3% of topic marks 2026 Syllabus 2018–current

All WPH12 Waves and Particle Nature of Light topic questions All paper codes

Core finding

This Waves and Particle Nature of Light syllabus point appears in 1 WPH12 papers across 2026, contributing 1 topic questions and 3 marks. The most recent appearance is WPH12/02 January 2026. That equals 0.2% of the 468 topic questions and 0.3% of the 1,138 marks tagged to Waves and Particle Nature of Light. 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
WPH12/02January 2026 · Edexcel IAL	Q16 Refractive Index and Dipstick Optical Mechanics - Edexcel IAL Physics Jan 2026 Q16	FRQ	1 of 3 parts ((a))	3 of 10 on the paper	Medium	Go to Practice Hub

Related topic questions in Waves and Particle Nature of Light

33 understand the terms amplitude, frequency, period, speed and wavelength 21 question items · 14 papers 37 marks · 2019–2026 34 be able to use the wave equation $v = f λ$ 36 question items · 19 papers 117 marks · 2019–2026 35 be able to describe longitudinal waves in terms of pressure variation and the displacement of molecules 10 question items · 9 papers 15 marks · 2019–2026 36 be able to describe transverse waves 11 question items · 10 papers 20 marks · 2019–2026 37 be able to draw and interpret graphs representing transverse and longitudinal waves including standing/stationary waves 22 question items · 14 papers 47 marks · 2019–2026 38 CORE PRACTICAL 4: Determine the speed of sound in air using a 2-beam oscilloscope, signal generator, speaker and microphone 8 question items · 5 papers 25 marks · 2019–2024

Topic question rules and edge cases

How many topic questions cover this syllabus point?: 1 question stems cover this subtopic across 1 papers, but only 1 tagged parts and 3 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 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.