Table of Contents
- 1 What causes a stage to move upward or downward?
- 2 What moves the stage up and down?
- 3 Which part of the microscope allows you to move the stage up and down in very small finite increments?
- 4 Which lens could get dirty with oil if you move the revolving nosepiece?
- 5 What part moves the body tube and objectives up and down?
- 6 What part would you rotate to change magnification?
- 7 What are the two functions of objective lens?
- 8 What knobs move the stage side to side?
- 9 How to prepare a slide for an objective lens?
- 10 Which is part of the microscope causes the stage to move upward or downward?
- 11 What is the adjustment knob in a microscope?
What causes a stage to move upward or downward?
Coarse Adjustment Knob- The coarse adjustment knob located on the arm of the microscope moves the stage up and down to bring the specimen into focus. The gearing mechanism of the adjustment produces a large vertical movement of the stage with only a partial revolution of the knob.
What moves the stage up and down?
Coarse Adjustment knob. The larger knob, moves the stage up/down at large increments. Used to focus on the specimen. Fine adjustment knob.
What is the function of the objective lens on a microscope?
The objective, located closest to the object, relays a real image of the object to the eyepiece. This part of the microscope is needed to produce the base magnification. The eyepiece, located closest to the eye or sensor, projects and magnifies this real image and yields a virtual image of the object.
Which part of the microscope allows you to move the stage up and down in very small finite increments?
ARM This part on the side of the microscope is used to support it when it is carried. COARSE ADJUSTMENT KNOB This part moves the stage up and down to help you get the specimen into view. FINE ADJUSTMENT KNOB This part moves the stage slightly to help you sharpen or “fine” tune your view of the specimen.
Which lens could get dirty with oil if you move the revolving nosepiece?
What lens could get dirty with oil if you move the revolving nosepiece in the wrong direction after viewing under oil immersion? add a drop of immersion oil before rotating the 100x lens into position.
Which objective lens has the highest magnification?
Oil Immersion Objective Lens
Oil Immersion Objective Lens (100x) The oil immersion objective lens provides the most powerful magnification, with a whopping magnification total of 1000x when combined with a 10x eyepiece.
What part moves the body tube and objectives up and down?
Cards In This Set
| Front | Back |
|---|---|
| Stage | Supports a slide |
| Coarse adjustment | Moves the body tube up and down in large increments to allow gross positioning and focusing of the objective lens. |
| Fine adjustment | Moves the body tube slightly to bring the image into sharp focus. |
| Base | Supports the microscope |
What part would you rotate to change magnification?
Revolving Nosepiece or Turret: This is the part of the microscope that holds two or more objective lenses and can be rotated to easily change power (magnification).
What are the 3 objective lenses on a microscope?
Essentially, objective lenses can be categorized in to three main categories based on their magnification power. These include: low magnification objectives (5x and 10x) intermediate magnification objectives (20x and 50x) and high magnification objectives (100x).
What are the two functions of objective lens?
The objective itself is usually a cylinder containing one or more lenses that are typically made of glass; its function is to collect light from the sample. Microscope objectives are characterized by two parameters: magnification and numerical aperture. The magnification typically ranges from 4× to 100×.
What knobs move the stage side to side?
Coarse-Adjustment Knob: On each side of the microscope (close to the base) is a large knob with a smaller knob in the middle. This large knob is used to bring an object into close focus as it moves the stage ( l ) up or down.
What part of the microscope holds the objectives?
Revolving Nosepiece
Revolving Nosepiece or Turret: This is the part that holds two or more objective lenses and can be rotated to easily change power. Objective Lenses: Usually you will find 3 or 4 objective lenses on a microscope.
How to prepare a slide for an objective lens?
Place the steps in the correct order. Rank the options below. Obtain a clean slide and cover slip. Observe preparation under the 40X objective lens. Using a transfer pipette, obtain a drop of specimen and place onto the center of the slide. Observe preparation under the 10X objective lens. 12. A wet mount is time-consuming to prepare. 13.
Which is part of the microscope causes the stage to move upward or downward?
The __________ causes the stage to move upward or downward. Which part of the microscope will be used first to adjust the focus when starting with the lowest power lens? When the mechanical stage is physically moved to the right, the image you see under the oculars appears to move to the left.
What causes a compound light microscope to move up or down?
Causes stage (or objective lens) to move upward or downward 5. Concentrates light onto the specimen B. Body tube. C. Rotating nosepiece. D. Stage. C. Rotating nosepiece. Label the image of a compound light microscope using the terms provided.
What is the adjustment knob in a microscope?
Adjustment knob 5. Condenser 1. Increases or decreases the light intensity 2. After light passes through the specimen, it next enters this lens system 3. Platform that supports a microscope slide 4. Causes stage (or objective lens) to move upward or downward 5. Concentrates light onto the specimen B. Body tube.