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What is the position of the image formed by a concave mirror when the object is placed at the centre of curvature of that spherical mirror?

What is the position of the image formed by a concave mirror when the object is placed at the centre of curvature of that spherical mirror? Correct Answer At the centre of curvature

CONCEPT:

Different positions of the object and their image by a concave mirror: 

Position of the object (Concave mirror) Position of image size of the image in comparison to the object Nature of image
At Infinity At focus Highly diminished Real, inverted
Between Infinity and the centre of curvature Between the focus and centre of curvature Diminished Real, inverted
At the centre of curvature At the centre of curvature Of the same size Real, inverted
At focus At Infinity Highly enlarged Real, inverted
Between the focus and centre of curvature Between the centre of curvature and infinity Enlarged  Real, inverted

EXPLANATION:

  • The position of the image formed by a concave mirror when the object is placed at the centre of the curvature of that spherical mirror is at the centre of curvature. So option 4 is correct.

Important Points

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