Physics, asked by divyasharma6174, 9 months ago

Power of a lens is -2.0D find the nature and focal length of the lens

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Answered by sunsana

4

Power of a lens is -2D, negative sign indicates it is a Concave lens. Focal length (in meters)=1/power of the lens, thus focal length=1/2=0.5m=50cm

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