Q85 / 270 · NDA 2016 (Phase 1) · General Ability

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

  • A
    40 cm
  • B
    60 cm
  • Correct answer
    C
    80 cm
  • D
    120 cm

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.

Hence, the correct answer is option: 'C'.

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