The newest 5 of 5 written questions. Open one to see it on the real paper.
Calculate the angle of refraction of the light ray. angle = °
See it on the paper →Fig. 10.2 shows a ray of visible light travelling in glass. The light is incident on the boundary between glass and air at an angle greater than the critical angle. air glass Fig. 10.2 Continue the path of the light ray. Question 11 starts on page 26.
See it on the paper →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 →at point Y.
See it on the paper →row shows an angle of incidence i of the light and what happens to the light when it reaches the edge of the glass block at this angle of incidence?
See it on the paper →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, 0654/42 Q10(d) (Cambridge)
The topic here was critical angle and total internal reflection. The incorrect option B was almost as popular as the correct option C. Although both the angles in these options were above the critical angle, only option C stated that total internal reflection occurred as a result.
— Examiner report, October/November 2019, 0654/22 Q34 (Cambridge)
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