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Q: An object is placed in front of a concave mirror at a distance twice its focal length (2f). The image is formed at a distance of.
  • A. 4f
  • B. 1.5f
  • C. 2f
  • D. f
Correct Answer: Option C - If an object is placed in front of a concave mirror at a distance twice its focal length the image will also be formed at a distance of 2f.
C. If an object is placed in front of a concave mirror at a distance twice its focal length the image will also be formed at a distance of 2f.

Explanations:

If an object is placed in front of a concave mirror at a distance twice its focal length the image will also be formed at a distance of 2f.