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A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm towards the mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is

Options

  1. A40 cm
  2. B60 cm
  3. C80 cm
  4. D120 cm

Correct answer

C. 80 cm

Step-by-step solution

In plane mirror, distance of object from mirror = distance of image from mirror. So the distance between mirror and object =40+40= 80 cm.

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