pIf a concave mirror has a focal length of \( 10 \mathrm{~cm} \), find the two positions where a...

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pIf a concave mirror has a focal length of \( 10 \mathrm{~cm} \), find the two positions where an object can be placed to give,/pp\( P \) in each case, an image twice the height of the object./p
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