Microscope Parts and Functions

What are the main parts of a compound microscope?

A. Eyepiece, objective lens, stage, and base

B. Light source, fine adjustment knob, coarse adjustment knob, and arm

C. Diaphragm, stage clips, condenser lens, and body tube

D. All of the above

Answer:

D. All of the above

A compound microscope consists of several main parts that work together to magnify and visualize tiny objects. These parts include the eyepiece, objective lens, stage, base, light source, fine adjustment knob, coarse adjustment knob, arm, diaphragm, stage clips, condenser lens, and body tube.

The eyepiece is where the user looks through to see the magnified image. The objective lens is responsible for magnifying the specimen. The stage holds the microscope slide in place for observation. The base provides stability for the entire microscope.

The light source illuminates the specimen for better visibility. The fine adjustment knob allows for precise focusing, while the coarse adjustment knob moves the stage up and down for initial focusing. The arm supports the microscope and connects the head to the base.

The diaphragm controls the amount of light passing through the specimen. Stage clips secure the slide in place. The condenser lens concentrates the light onto the specimen. Finally, the body tube holds the eyepiece and objective lenses at a specific distance for proper magnification.