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Microscope quiz 1
Microscope quiz
| Question | Answer |
|---|---|
| Field of view | circular area seen through the eyepiece |
| Depth of Field | the space between the slide and the coverslip |
| Because of the ability of our microscopes to switch between objectives without needing to use the coarse adjustment knob to bring our specimen back into focus, our microscopes are referred to as | Parfocal |
| Inversion | turned upside down and reversed left to right compared to the image seen with eye is called |
| Who invented the Microscope | ANTON VAN LEEUWENHOEK |
| Explain why what we use in class is called a compound light microscope | we call the device in class a compound light because light passes through two lenses two eye pieces one above the other |
| How do you ALWAYS carry a microscope | always grab it by the arm and have your other arm under the base |
| The shorter the objective | the lower the magnification and reverse |
| The higher the magnification | the smaller the field of view and revered |
| How do you calculate the total magnification? | multiply the power of the eyepiece and the power of the objective |
| A dissecting scope (also called stereoptic or binocular) is used | to view much larger and thicker items than a microscope. |
| Located at the top of the body tube, contains the ocular lens | Eyepiece |
| Revolving Nosepiece | rotating disk with objective lenses mounted on it |
| Objectives | the shorter objective is used for scanning and has a magnification of 4x |
| What are Mechanical Stage and Specimen Holder | glass slides on the stage that are held in place by a metal clamp |
| COARSE adjustment knob | the large knob on the side of the arm and can be operated from either side, |
| FINE adjustment knob | the smaller knob in the center if the large knob |
| Curved area just below the body tube grasped when moving or carrying the microscope. | ARM |
| Mounted on the condenser and opens/closes the diaphragm to adjust the amount of light entering the lens system | IRIS DIAPHRAGM |