Two boys are standing in front of a plane mirror as shown. When boy X looks into the mirror, how far away from him will boy Y seem to be?
A
14 m
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B
12 m
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C
10 m
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D
16 m
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Solution
The correct option is D 16 m In a plane mirror, the image is formed at the same distance from the mirror as the object is in front of the mirror.
Since man Y is 14 m (2 m + 12 m) away from the mirror, his image will be 14 m behind the mirror.
Therefore, the total distance between man X and Y’s image is 16 m (14 m + 2 m).