plumiInterference: CAIE A‑Level Physics questions
Every CAIE A-Level Physics exam question on 8.3 Interference, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Calculations
Q4(b)(ii)
The whole paper ↗![Specimen Paper 2, question 4(b)(ii): Calculate the path difference at point R of the waves from P and Q. Give your answer in terms of the wavelength λ of the waves. path difference = λ [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/970202-spec-04-bii-qp.webp)
Q4(b)(iii)
The whole paper ↗![Specimen Paper 2, question 4(b)(iii): Describe the motion, if any, of the water particles at point R. Explain your answer. [2] [Total: 8]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/970202-spec-04-biii-qp.webp)
All 4 questions on Interference, as a list
- June 2024, Paper 1, Q30 (1 mark): Microwaves are emitted from two sources at points X and Y. The two waves meet at point Z. The diagram shows the paths of the two waves. X Z Y The waves emitted
- Specimen, Paper 1, Q28 (1 mark): A pattern of interference fringes is produced using a red laser, a double slit and a screen. The screen is 3.5 m from the double slit. The light from the laser
- Specimen, Paper 2, Q4(b)(ii) (1 mark): Calculate the path difference at point R of the waves from P and Q. Give your answer in terms of the wavelength λ of the waves. path difference = λ [1]
- Specimen, Paper 2, Q4(b)(iii) (2 marks): Describe the motion, if any, of the water particles at point R. Explain your answer. [2] [Total: 8]
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