0654.P3.2.05 — Describe total internal reflection using ray diagrams: past paper questions
Real questions on 0654.p3.2.05 — describe total internal reflection using ray diagrams
The newest 6 of 6 written questions. Open one to see it on the real paper.
- 0973/42 · May/June 2025 · Q10d[2]
When white light passes through a prism, it undergoes dispersion. Describe dispersion in terms of wave frequency. You may wish to draw a diagram to illustrate your answer.
See it on the paper → - 0973/31 · October/November 2024 · Q9a(i)[2]
On Fig. 9.2, complete the ray of light from the moth’s body to show where it appears on the screen. (i)
See it on the paper → - 0973/31 · October/November 2024 · Q9a(ii)[1]
Draw a double headed arrow (↕) on Fig. 9.2 to show the size and position of the image of the moth on the screen.
See it on the paper → - 0973/31 · October/November 2024 · Q9a(iii)[1]
State the name of the point labelled F on Fig. 9.2.
See it on the paper → - 0973/42 · May/June 2020 · Q12b[2]
Fig. 12.2 shows a section through a plastic reflector on the bicycle. A ray of light from a car is incident on the flat surface of the reflector. incident ray from car air plastic Fig. 12.2 The incident ray is totally internally reflected. Continue the incident ray on Fig. 12.2 to show the path of the ray of light unti...
See it on the paper → - 0973/42 · May/June 2019 · Q9b[2]
Endoscopes are used by doctors in hospitals to observe the inside of a patient. An endoscope uses optical fibres. Complete Fig. 9.1 to show how a ray of light travels down an optical fibre by total internal reflection.
See it on the paper →
What examiners said
The best responses answered this question in terms of different frequencies refracting to differing degrees. Candidates generally recognised that different colours of light had different frequencies.
— Examiner report, May/June 2025, 0973/42 Q10(d) (Cambridge)
Most candidates drew accurate diagrams. Accuracy in drawing the angles of reflection is important if full credit is to be gained.
— Examiner report, May/June 2019, 0973/42 Q9(b) (Cambridge)
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