Your task in physics laboratory is to make a microscope from two lenses. One lens has a focal length of 2.0cm, the other 1.2cm. You plan to use the more powerful lens as the objective, and you want the eyepiece to be 18cm from the objective.
Part A
What is the magnification of your microscope?
Part B
For viewing with a relaxed eye, how far should the sample be from the objective lens?