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Subject :NSO    Class : Class 7

A point source of light S, placed at a distance 1 m in front of the centre of a plane mirror of width 2 m, hangs vertically on a wall. Rahul walks in front of the mirror along a line parallel to the mirror at a distance 2 m from it as shown in the figure. The greatest distance over which he can see the image of the light source in the mirror is

A5 m
B9 m
C12 m
D6 m

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