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the power of a lens

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candle | 19:15 Tue 03rd Oct 2006 | How it Works
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how do you find the power of a lens for 0.20 focal length
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Avatar Image gary baldy
This may help:
http://www.microscopyu.com/articles/optics/nik oncfioptics.html
22:06 Tue 03rd Oct 2006
Avatar Image mibn2cweus
The lens power is the inverse of the focal length in meters: the physical unit for lens power is 1/meter which is called diopter.

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04:47 Wed 04th Oct 2006

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the power of a lens

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