plumiElectromagnetic spectrum: CAIE IGCSE Physics questions
Every CAIE IGCSE Physics exam question on 3.3 Electromagnetic spectrum, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
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Calculations
Q6(b)(i)
The whole paper ↗![June 2024 Paper 3, question 6(b)(i): Calculate the frequency of the infrared waves. frequency = Hz [3]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062531-jun24-06-bi-qp.webp)
Q6(b)(ii)
The whole paper ↗
Q9(a)(i)
The whole paper ↗![Specimen Paper 3, question 9(a)(i): In Fig. 9.1, one part of the electromagnetic spectrum is not labelled. State the name of this part. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062503-spec-09-ai-qp.webp)
Q9(a)(ii)
The whole paper ↗![Specimen Paper 3, question 9(a)(ii): The speed of visible light waves in a vacuum is 3.0 × 108 m / s. State the value for the speed of infrared waves in a vacuum. speed = m / s [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062503-spec-09-aii-qp.webp)
Q9(a)(iii)
The whole paper ↗![Specimen Paper 3, question 9(a)(iii): Some parts of the electromagnetic spectrum have a wavelength shorter than that of visible light. State one example. [1]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062503-spec-09-aiii-qp.webp)
Q9(b)(i)
The whole paper ↗![Specimen Paper 3, question 9(b)(i): X-rays and γ-rays are used in hospitals. Describe one medical use for X-rays and one medical use for γ-rays. X-rays γ-rays [2]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062503-spec-09-bi-qp.webp)
Q9(b)(ii)
The whole paper ↗![Specimen Paper 3, question 9(b)(ii): State two reasons why γ-rays are dangerous to living things. 1 2 [2] [Total: 7]](https://pub-e8a9dbab8e2a4d089f52b2a45e0d0b50.r2.dev/bank/062503-spec-09-bii-qp.webp)
All 11 questions on Electromagnetic spectrum, as a list
- June 2024, Paper 1, Q21 (1 mark): Infrared is a useful type of electromagnetic radiation. However, excessive exposure to infrared can cause harmful effects. Which row gives a use and a harmful e
- June 2024, Paper 2, Q21 (1 mark): Which region of the electromagnetic spectrum is used for detecting fake bank notes? A radio B microwaves C ultraviolet D X-rays
- June 2024, Paper 3, Q6(b)(i) (3 marks): Calculate the frequency of the infrared waves. frequency = Hz [3]
- June 2024, Paper 3, Q6(b)(ii) (2 marks): State the name of a region of the electromagnetic spectrum which has a wavelength longer than the wavelength of infrared. Give one use of the radiation in this
- Specimen, Paper 1, Q24 (1 mark): Which statement is correct? A Infrared radiation is used in medical scanning of bones. B Microwaves are used in telecommunications. C Ultraviolet light is used
- Specimen, Paper 2, Q24 (1 mark): What is the speed of electromagnetic waves in a vacuum? A 3.0 × 104 cm / s B 3.0 × 105 km / s C 3.0 × 106 cm / s D 3.0 × 1011 km / s
- Specimen, Paper 3, Q9(a)(i) (1 mark): In Fig. 9.1, one part of the electromagnetic spectrum is not labelled. State the name of this part. [1]
- Specimen, Paper 3, Q9(a)(ii) (1 mark): The speed of visible light waves in a vacuum is 3.0 × 108 m / s. State the value for the speed of infrared waves in a vacuum. speed = m / s [1]
- Specimen, Paper 3, Q9(a)(iii) (1 mark): Some parts of the electromagnetic spectrum have a wavelength shorter than that of visible light. State one example. [1]
- Specimen, Paper 3, Q9(b)(i) (2 marks): X-rays and γ-rays are used in hospitals. Describe one medical use for X-rays and one medical use for γ-rays. X-rays γ-rays [2]
- Specimen, Paper 3, Q9(b)(ii) (2 marks): State two reasons why γ-rays are dangerous to living things. 1 2 [2] [Total: 7]
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