Geography, 03.06.2021 08:40 firenation18

an object is placed at a distance of 20cm from concave lens of focal length 20cm . at what distance is the image formed from the lens?also find the magnification of the image

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an object is placed at a distance of 20cm from concave lens of focal length 20cm . at what distance is the image formed from the lens?also find the magnification of the image​

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an object is placed at a distance of 20cm from concave lens of focal length 20cm . at what distance is the image formed from the lens?also find the magnification of the image