Physics, asked by aaryanthopte, 5 months ago

what does the power of a lens -4d signify

Answers

Answered by rohitjha2005

Answer:

Explanation:

The power of a lens is defined as the reciprocal of the focal length. ... Converging (convex ) lenses have positive focal lengths, so they also have positive power values. Diverging (concave ) lenses have negative focal lengths, so they also have negative power values.

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