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Question

It is desired to photograph the image of an object placed at a distance of 3 m from the plane mirror. The camera which is at a distance of 4.5 m from the mirror should be focussed for a distance of 


  1. 6m

  2. 6m
  3. 4.5m

  4. 7.5m


Solution

The correct option is D

7.5m


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