Physics, asked by giri8013, 10 months ago

The focal length of a spectacle lens is 25cm.then find the power of the lens.

Answers

Answered by harinibaby2006

Answer:

Power is expressed as the inverse of focal length, where a focal length of 1 meter is equal to one diopter. So a 25 cm. focal length (0.25 meters) has a power of 4 diopters.

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