Question:medium

What is the focal length of a lens if its power is \( +2 \, \text{D} \)?

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Remember: The power of a lens is the reciprocal of its focal length. The unit of power is diopter (D), and the focal length is in meters.

Updated On: Nov 26, 2025

0.5 m
1.0 m
2.0 m
0.2 m

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