Calculate the position that a lens should be placed in order to achieve the maximum magnification. The length between the object plane and the image plane is 50cm and are fixed ( meaning they are restricted). Only the lens can be moved. The focal length of the lens is 7.5 cm.
1) what is S and S'
2) what is the position of the lens
3) what is the maximal magnification possible?
4) what is the smallest magnification under same conditions?
5) Give a real life example where this problem could be encounter