Find the correct values below:
A convex lens forms a real and inverted image of a needle at a distance of \(43\ cm\) from it. Where is the needle placed in front of the convex lens if the image is equal to the size of the object?
Lens formula is,
Distance of the object from lens (\(u\)) \(=\) \(cm\)
Focal length (\(f\)) \(=\) \(m\)
[Note: Enter your answers with two decimal digits.]