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Q: When an object is kept at the centre of curvature of a concave mirror, the image will be formed at:
  • A. infinity
  • B. the position behind the mirror
  • C. The centre of curvature
  • D. the principal focus
Correct Answer: Option C - When an object is kept at the centre of curvature of a concave mirror, the image will be formed at the centre of curvature.
C. When an object is kept at the centre of curvature of a concave mirror, the image will be formed at the centre of curvature.

Explanations:

When an object is kept at the centre of curvature of a concave mirror, the image will be formed at the centre of curvature.