Your task in physics lab is to make a microscope from two lenses.One lens has a focal length of 12 {\rm cm}, the other a focal lengthof 2.5 {\rm cm}. You plan to use the morepowerful lens as the objective, and you want its image tobe 16 {\rm cm} from the lens, as in astandard biological microscope.
-What will be the magnification of your microscope?