If the distance between an object and its image from a plane mirror is 13 meters, how far should the object be kept to get the distance to 20 meters? [2 MARKS]

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Solution

Concept: 1 Mark
Result: 1 Mark

A plane mirror always creates an object at an equal distance of how far the object is from the mirror.

If the distance between the object and image formed from the plane mirror should be 20 m, then the object should be placed 10 m from the plane mirror.

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