ᴅᴇꜰɪɴᴇ ᴛʜᴇ ᴘᴏᴡᴇʀ ᴏꜰ ʟᴇɴꜱ?
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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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Answer:
The power of a lens is defined as the reciprocal of the focal length.
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