Physics · Light Reflection and Refraction

A concave lens has a focal length of -2 cm. What is its power?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

10.5 D
2-0.5 D
3-50 D✓
425 D

Correct answer

-50 D

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A concave lens has a focal length of -2 cm. What is its power?

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