What is the unit of power of the lens in SI method?

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What is the unit of power of the lens in SI method?

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anonymous · Answer 1 · 2021-07-30T06:36:28+0000

The S.I. unit of power of a lens ism−1. This is also known as diopter. The focal length (f) of a converging lens is considered positive and that of a diverging lens is considered negative.

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What is the unit of power of the lens in SI method?

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