alleryStart learning →A lamp stands 3 m in front of a plane mirror. How far is the lamp from its reflection?
A3 m
B1.5 m
C6 m
D9 m
Answer & Solution
Correct answer: C. 6 m
The image lies as far behind the mirror as the lamp is in front, so the gap is 3 + 3 = 6 m.
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