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Q: Find the distance of an object from a concave mirror whose focal length is 10 cm so that the distance of image from mirror is four times the distance of the object will be-
  • A. 7.5 cm.
  • B. 5 cm
  • C. 2.5 cm.
  • D. 12.5 cm.
Correct Answer: Option D -
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Explanations:

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