While travelling in a train, you might have noticed that the objects near to you appear to move backwards, while the ones far away seem to travel along with you. This observation introduces the idea of observation of parallax. Using this concept, along with reflection from a plane mirror, we can experimentally verify that for a plane mirror object distance is same as the image distance.

Materials Required

A foam sheet (approx 30cm x 40cm), A4 size sheets of paper, 1 plane mirror, At least 2 needles, taller than the mirrors, Rubber band and allpins or Cloth clips, Thumb tacks.

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