Questions and Answers
What does the Arm of the microscope do?
Supports the body tube and is used to carry the microscope.
What is the purpose of the Base in a microscope?
Supports the microscope and is used to carry it; the bottom part of the microscope.
What is the function of the Body tube?
Light passes through this hollow tube; it also maintains the correct distance between the eyepiece lens and the objective lens.
What does the Coarse adjustment knob do?
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What is the function of the Diaphragm?
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What is the Eyepiece?
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What does the Fine adjustment knob do?
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What is the role of the Mirror or light source?
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What does the Nose piece do?
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What are Objective lenses?
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What is the function of the Stage?
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What do Stage clips do?
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How do you calculate total magnification?
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Why should you never use the Coarse adjustment knob when viewing an object at high power?
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When you finish using a microscope, how should you prepare it for the next group?
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What is a Coverslip?
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What is a Specimen?
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Study Notes
Microscope Components and Functions
- Arm: Supports the body tube, facilitates carrying the microscope.
- Base: The bottom section that supports the entire microscope structure and is used for transport.
- Body Tube: Hollow structure allowing light passage; maintains the correct separation between eyepiece and objective lenses.
- Coarse Adjustment Knob: Used for significant focusing adjustments; raise/lower body tube or stage. Recommended to use first; avoid during high power settings to prevent damage.
- Diaphragm: Adjusts light intensity entering the body tube for optimal viewing contrast.
- Eyepiece: Top section for viewing specimens, typically magnifies images at 10 times the original size.
- Fine Adjustment Knob: Enables precise, minor adjustments for sharp image clarity; suitable for use under high power magnification.
- Mirror or Light Source: Illuminates the specimen by directing light upward through the stage, object, and lenses.
- Nose Piece: Houses objective lenses; allows rotation for changing magnification levels.
- Objective Lenses: Magnification levels generally range from 10X to 40X; attached to the nose piece.
- Stage: The platform supporting the specimen being examined.
- Stage Clips: Mechanical holds securing the microscope slide in position during observation.
Important Procedures
- Total Magnification Calculation: Multiply the eyepiece magnification (10X) by the objective lens magnification for overall magnification, e.g., for a 10X objective: 10 x 10 = 100X.
- Coarse Adjustment Warning: Using the coarse adjustment knob at high power can lead to collisions between the lens and slide, risking breakage.
- Microscope Maintenance: Before leaving the microscope for the next user, ensure it's set to the lowest objective with the stage lowered, and switch off the power outlet.
- Coverslip: A protective, transparent material used over the specimen to prevent damage.
- Specimen: Refers to the sample being viewed through the microscope.
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Description
Test your knowledge of the various parts of a microscope with these flashcards. This quiz focuses on the definitions and functions of key components such as the arm, base, and body tube. Perfect for students learning about microscopy.