Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material for any purpose, even commercially.
Sharing and adapting of the illustration is allowed with indication of the link to the illustration.
An apple has the height \(G\) (object size) and is imaged with a lens. The object is located at a distance \(g\) from the lens (object distance). The image of the object produced by the lens has the size \(B\) (image size) and the image has the distance \(b\) to the lens (image distance). The lens has the focal length \(f\).