What is the distance between a real object and its real image in the case of a concave mirror when the object is placed at the centre of curvature?

The minimum distance between the object and its real image for concave mirror is

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CONCEPT:

Mirror

• A mirror is a polished surface that reflects the light incident on it.
• Types of the mirror:
  1. Plane mirror
  2. Spherical mirror
     • ​​Concave mirror
     • Convex mirror

EXPLANATION:

• We know that for a concave mirror when the object is placed at the center of curvature then the real and inverted image is formed at the center of curvature.

• So the image formed at the same point when the object is placed i.e., at the center of curvature for the concave mirror, therefore the distance between the image and the object is zero.

• So the minimum distance between the object and its real image for the concave mirror is zero. Hence, option 4 is correct.

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