Science, asked by arvindrahul199816, 5 months ago

4. Power of concave lens is
-10D then focal length​

Answers

Answered by Anonymous
24

2 m

The diopter is the unit of measure for the refractive power of a lens. The power of a lens is defined as the reciprocal of its focal length in metres, or P=f1, where P is the power in dioptres and f is the focal length in metres.

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