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How Unit of Power Related to Focal Length of a Lens? - Science

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Question

How unit of power related to focal length of a lens?

Solution

Power is expressed as inverse of focal length, (in metres).

`"Power (in Diopters) ="1/"Focal length (in metres)"`

 

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How Unit of Power Related to Focal Length of a Lens? Concept: Refraction at Spherical Surfaces and by Lenses - Power of a Lens.
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