An object is placed far beyond the centre of curvature of a concave mirror. The object then starts accelerating towards the mirror. Which one of the following is correct?

  1. A. The image will accelerate towards the centre of curvature.
  2. B. The image will accelerate towards the focus.
  3. C. The image will accelerate towards the pole of the mirror.
  4. D. The image will move with a constant speed towards the focus.

Correct Answer: A. The image will accelerate towards the centre of curvature.

Explanation

For a concave mirror, as the object accelerates from infinity towards the centre of curvature, its real image moves from the focus towards the centre of curvature with increasing speed.

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