Sita, 1.5 m high, stands before a plane mirror fixed on a wall to view her full image. What should be the minimum height of the plane mirror so that Sita can view her image fully?
- A. 0.50 m
- B. 0.35 m
- C. 0.75 m ✓
- D. 0.25 m
Correct Answer: C. 0.75 m
Explanation
The minimum height of a plane mirror required to view the full length of an object is half the height of the object. 1.5 / 2 = 0.75 \text{ m}.
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