5 Written questions
5 Multiple choice questions
- This is the part that holds two or more objective lenses and can be rotated to easily change power.
- Allows you to direct ambient light up through the hole in the stage and illuminate the specimen.
- Supports the tube and connects it to the base
- Clips on the stage used to hold the slide in place.
- This is the rough focus knob on the microscope. You use it to move the objective lenses toward or away from the specimen.
5 True/False questions
Objective Lens → They almost always consist of 4X, 10X, 40X and 100X powers. When coupled with a 10X (most common) eyepiece lens, we get total magnifications of 40X (4X times 10X), 100X , 400X and 1000X.
Fine adjustment knob → This is the knob used to fine tune the focus on the specimen. It is also used to focus on various parts of the specimen. Generally one uses the coarse focus first to get close then moves to the fine focus knob for fine tuning.
Diaphragm → A rotating disk under the stage that is used to vary the intensity and size of the cone of light that is projected upward into the slide.
Base → Connects the eyepiece to the objective lenses
Stage Plate → Clips on the stage used to hold the slide in place.