O-LevelPhysicsLight5054/12 · May/June 2022 · Q241 Mark
The diagram shows a ray PQ reflected by mirror X to a parallel mirror Y. The reflected ray along RS is parallel to PQ. Which statement is correct?
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.
AThe angle between PQ and QR is 45°.
BThe angle between QR and RS is 180°.
CThe angle of incidence of PQ on mirror X is 60°.
DThe angle of incidence of QR on mirror Y is 45°.
✓ Correct answer
D: The angle of incidence of QR on mirror Y is 45°.
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