Answer:
1.base-The bottom of the microscope, used for support Illuminator: A steady light source (110 volts) used in place of a mirror.
2.revolving nosepiece-This is the part that holds two or more objective lenses and can be rotated to easily change power.
3.objective lens-The objective lens gathers light from the specimen, magnifies the image of the specimen, and projects the magnified image into the body tube.
