A-LevelPhysicsWaves9702/12 · May/June 2023 · Q241 Mark
A vertically polarised beam of light of intensity I₀ is incident normally on a polarising filter. The transmission axis of the filter is at 45° to the vertical. The beam of light transmitted by this filter is then incident normally on a second filter. The transmission axis of the second filter is horizontal. [Figure 24.1] What is the intensity of the beam of light after transmission through the second filter?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A0
B¼ I₀
C½ I₀
DI₀
✓ Correct answer
B: ¼ I₀
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Waves and see which topics are most likely to come up next.
Sign up free →