Questions and Answers
What supports the microscope?
Which part is used to carry the microscope?
What is the function of the stage?
Platform where the slide with the specimen is placed.
What is the purpose of stage clips?
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What does the eyepiece do?
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What is the role of the revolving nosepiece?
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What are objective lenses used for?
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What does the coarse adjustment knob do?
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What is the fine adjustment knob used for?
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What does the diaphragm control?
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What is the function of the light source?
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Always carry the microscope by holding the _______ of the microscope with one hand and supporting the base with the other hand.
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Place the microscope on a _____, sturdy surface. The _____ should be positioned toward you.
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Look through the eyepiece(s). Adjust the ____ so that the light comes through the opening in the stage.
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Place a slide on the ____ so that the specimen is in the field of view (what you see in the eyepiece). Hold it firmly in place using the stage clips.
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Always focus first using the _____ _____ _____ and the low-power objective lens. Once the object is in rough focus, use the fine adjustment knob to sharpen the image.
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Switch to the medium-power or high-power objective. Use only the ____ ____ ____ to focus the image when using these objective lenses.
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Study Notes
Microscope Parts and Functions
- Base: Provides support to the microscope, ensuring stability during use.
- Arm: Integral for carrying the microscope securely; always hold the arm when transporting.
- Stage: Serves as a platform for placing slides containing specimens for examination.
- Stage Clips: Securely hold slides in place on the stage to prevent movement during observation.
- Eyepiece (Ocular Lens): Magnifies the specimen's image for the observer's view.
- Revolving Nosepiece: Houses multiple objective lenses and allows for easy rotation to switch lenses.
- Objective Lenses: Come in low-, medium-, and high-power options; provide varying magnification intensities.
- Coarse Adjustment Knob: A larger knob used primarily for general focusing under low power to achieve a clear image.
- Fine Adjustment Knob: A smaller knob for precise focusing, especially beneficial when using medium- or high-power objectives.
- Diaphragm: Regulates the amount of light that passes through the specimen, enhancing visibility.
- Light Source: Illuminates the specimen for optimal visibility and clarity during observation.
- Body Tube: Connects the eyepiece to the objective lenses, aligning the path of light.
- Proper Use: Always position the microscope on a flat, sturdy surface with the arm facing towards the user.
- Initial Focus: Begin focusing with the coarse adjustment knob while using the low-power objective lens for a general view.
- Adjustment Technique: After rough focusing, switch to the fine adjustment knob for sharper clarity with medium or high power.
- Slide Preparation: Position the slide on the stage ensuring the specimen is visible through the eyepiece and secure it with stage clips.
- Light Adjustment: Modify the diaphragm settings for adequate light control based on the specimen and objective lens in use.
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Description
This quiz covers the essential parts of a microscope and their specific functions. Learn about components such as the base, arm, stage, and different types of lenses. Understand how each part contributes to the overall functionality of the microscope.
