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A point source of light B is placed at a distance L in front of the centre of a mirror of width `d` hung vertically on a wall. A man walks in front of the mirror along a line parallel to the mirror at a distance 2L from it as shown in fig. The greatest distance over which he can see the image of the light source in the mirror is

A

`(d)/(2)`

B

d

C

2d

D

3d

Text Solution

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The correct Answer is:
D
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