Question

what kind of lenses do you think are employed in the making of a simple microscope and a compound microscope?

Answer 1

A simple microscope enlarges an object through angular magnification resulting in an enlarged erect image. A compound microscope is the one which uses a lens near the object and a real image is focussed on to the other lens inside the microscope. The second lens magnifies the image resulting in enlarged, inverted and virtual image of the object.
A convex lens is used in simple as well as compound microscope.