9000124505

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Project ID: 
9000124505
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1
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The picture shows the virtual image \(y'\) of the object \(y\) as created by a concave lens. The points \(F\) and \(F'\) are focal points of the lens. The distance from the lens to each of the focal points is \(20\, \mathrm{cm}\). The object \(y\) is \(25\, \, \mathrm{cm}\) height and it is in the distance \(50\, \mathrm{cm}\) from the lens. Find the height of the virtual image \(y'\).
\(\frac{50} {7} \, \mathrm{cm}\)
\(10\, \mathrm{cm}\)
\(\frac{50} {3} \, \mathrm{cm}\)
\(\frac{175} {2} \, \mathrm{cm}\)