if the sapration between an object and its image in plane mirror is 60 cm, find out the distance from the object to mirror?
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Answer is B.
For plane mirrors, the object distance (often represented by the symbol do) is equal to the image distance (often represented by the symbol di). That is, the image is the same distance behind the mirror as the object is in front of the mirror.
For example, if we stand at a distance of 2 meters from a plane mirror, we must focus at a location 2 meters behind the mirror in order to view our image.
In this case, the distance between the object and its image formed by a plane mirror appears to be 24 cm. So, the object distance will be 24 / 2 = 12 cm.
Hence, the distance between the mirror and the object is 12 cm.
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