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Q: A lens has a power of + 2.0D. The type of lens and its focal length will be ……
  • A. convex, -0.5 m
  • B. concave, -0.5 m
  • C. concave, 0.5 m
  • D. convex, 0.5 m
Correct Answer: Option D -
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Explanations:

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