Eyepiece (Ocular Lens)*: Magnifies the image formed by the objective lens. Usually 10X or 15X magnification.

Here are the parts of a compound microscope and their functions:

• Eyepiece (Ocular Lens): Magnifies the image formed by the objective lens. Usually 10X or 15X magnification.
• Revolving Nosepiece: A rotating disc in a compound microscope that holds multiple objective lenses.
• Coarse Adjustment Knob: Moves the stage up and down for rough focusing.
• Fine Adjustment Knob: Provides sharp and precise focusing of the specimen.
• Objective Lenses: Provide different levels of magnification (4X, 10X, 40X, 100X). Closest to the specimen.
• Condenser Lens: Focuses light onto the specimen for clear image formation.
• Mirror / Illuminator: Provides light to illuminate the specimen. Can be a mirror or built-in light source.
• Inclination Joint: Allows the microscope body to be tilted for comfortable viewing.