Distinguish Between A Plane Mirror, A Concave Mirror And A Convex Mirror.

Q25. How to distinguish between a plane mirror, a concave mirror and a convex mirror without touching them.
Ans. We can distinguish between these mirrors just by looking into them. That is by bringing our face close to each mirror Turn by turn.

  1. The image is erect and equal size and does not change its size and nature on moving the mirror closer or away from the face, then the mirror is plane.
  2. The image is erect and magnified and it becomes inverted on moving the mirror away from the face, then the mirror is concave.
  3. The image is erect and diminished and it remains erect on moving the mirror away from the face, then the mirror is convex.

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