A man is standing $9 m$ away in front of a mirror. What would be the distance between the man and his image?

9 m

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18 m

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10 m

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20 m

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Solution

The correct option is B $18 m$
The image is formed is at the same distance behind the mirror as the object is in front of the mirror.
Therfore, the distance between the man and his image is the sum of the distance of the man from mirror and the distance at which the image is formed.
Distance between the object and image is:
$9 m + 9 m = 18 m$

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