Compound
Microscope is an optical devices which uses two lenses, primary lens forms a
real image and a secondary lens is used as a magnifier to make an enlarged
virtual image.When an object is placed farther from a convergent lens than the
focal length, the lens produces an inverted, real image and enlarged image,
depending how close the object is to the focal point.
The objective lens produces a real image of the object, by having the object be just beyond its focal length and the eyepiece will then be placed very close to the image, so that the image falls within the eyepiece’s focal length and is Virtual, inverted and enlarged.