Physics (AS & A Level) · May / June 2023 · Paper 11 · Question 24

A vertically polarised beam of light is incident normally on a polarising filter. The transmission axis of the filter is at an angle of 40° to the horizontal. What is the ratio \frac{\text{amplitude of transmitted beam}}{\text{amplitude of incident beam}}?

1. A0.41
2. B0.59
3. C0.64
4. D0.77

As printed in the paper