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Where should an object be placed from a converging lens of focal length 20 cm, so as to obtain a real magnified image. |
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Answer» SOLUTION :`f=20cm, U=?, m=2` `m=c/uimplies2=v/uimpliesv=2U` `1/f=1/v-1/u` `implies1/20=1/(2u)-1/u` `impliesu=-10cm` `v=-20cm` |
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