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The power of a lens in diopters is 

Physics
JAMB 2025

The power of a lens in diopters is 

  • A. 3f
  • B. \(\frac{1}{\text{f}}\)
  • C. 2f
  • D. f
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Correct Answer: Option B
Explanation

Lens power P = 1/f, where f is focal length in meters; unit is diopter.

There is an explanation video available below.

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Explanation Video

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