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Q: A concave mirror of focal length f produces a real image at a distance v from the pole, when an object is kept at the distance u from the pole. Here, focal length of the given mirror is:
  • A. (u + v)/(u v)
  • B. (1/u) – (1/v)
  • C. (u v)/(u + v)
  • D. (1/ v) – (1/u)
Correct Answer: Option C -
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Explanations:

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