The newest 6 of 6 written questions. Open one to see it on the real paper.
The Sun radiates most of its energy in three regions of the electromagnetic spectrum. State the names of these three regions.
See it on the paper →List the colours of the visible spectrum in order of low to high frequency.
See it on the paper →Use Table 8.1 to identify the region of the electromagnetic spectrum of this transmitted wave.
See it on the paper →On Fig. 9.3, complete the ray diagram to show the formation of the image on the screen.
See it on the paper →Where does sound travel at the greatest speed?
See it on the paper →A lightning flash emits a range of wavelengths between 390 nm and 590 nm. (1 nm = 0.000 000 001 m). Table 9.1 shows the range of wavelengths of different parts of the electromagnetic spectrum. Table 9.1 type of electromagnetic wave range of wavelengths gamma rays less than 0.001 nm X‑rays 0.001–10 nm ultraviolet 10–400...
See it on the paper →This was usually answered correctly. Infrared and ultraviolet were common incorrect suggestions.
— Examiner report, May/June 2025, 0653/41 Q8(b)(i) (Cambridge)
Candidates found this question demanding. Some gained credit by continuing the rays that passed through the centre of the lens to the ends of the pencil. Most responses did not show the refracted rays correctly.
— Examiner report, October/November 2023, 0653/31 Q9(c)(ii) (Cambridge)
Most candidates were able to use the information in the table and correctly identify that lightning emits both visible light and ultraviolet waves.
— Examiner report, October/November 2019, 0653/33 Q9(d) (Cambridge)
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