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  • Power of lens is in dioptre, and is equal to reciprocal o...
Multiple choice

Power of lens is in dioptre, and is equal to reciprocal of if its focal length, which is measured in ___________.

  1. meter

  2. millimeter

  3. centimeter

  4. decimeter

  5. does not depend on the unit of focal length

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Yes, it is correct P = 1 / f, where f is measured in meter.

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