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Q: A 12 cm long object is placed at a distance of 15 cm from a concave lens. Its virtual image of 8 cm is obtained at a distance of ______.
  • A. + 22.5 cm
  • B. – 10 cm
  • C. – 22.5 cm
  • D. + 10 cm
Correct Answer: Option B -
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Explanations:

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