Two mirrors are inclined as shown in the diagram. A ray of light RO strikes...
PHYSICS
WAEC 1991
Two mirrors are inclined as shown in the diagram. A ray of light RO strikes the arrangement at O and emerges along PO. The emergent ray has been deviated through
- A. 240°
- B. 180°
- C. 120°
- D. 60°
Correct Answer: B. 180°
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