It has been observed that a mirror always forms the image between the pole and the focus, irrespective of the location of the object. Which one of the following is correct in respect of the nature of the mirror?

  1. A. It is a plane mirror.
  2. B. It is a convex mirror.
  3. C. It is a concave mirror of small focal length.
  4. D. It is a concave mirror of large focal length.

Correct Answer: B. It is a convex mirror.

Explanation

A convex mirror always forms a virtual, erect, and diminished image strictly between the pole and the principal focus, regardless of the distance of the object.

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