probe microscope. Microscope 1. An optical instrument‚ consisting of a lens‚ or combination of lenses‚ for making an enlarged image of an object which is too minute to be viewed by the naked eye. Parts and Specifications Historians credit the invention of the compound microscope to the Dutch spectacle maker‚ Zacharias Janssen‚ around the year 1590. The compound microscope uses lenses and light to enlarge the image and is also called an optical or light microscope (vs./ an electron microscope)
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microscope lens may be cleaned with any soft tissue.False. The microscope lenses should clean with a lens cleaner solution and a lens paper due to possible minerals or deposits on the any soft tissue. | | 2) The coarse adjustment knob maybe used in focusing with all objective lenses.False. The coarse adjustment knob should be used during scanning objective lens (lowest power). When it comes to higher objective lenses‚ the fine-focus knob should mostly be used and
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the knob. Because of this‚ the coarse adjustment should only be used with low power (4X and 10X objetives) and never with the high power lenses (40X and 100X). 3. Fine adjustment This knob is inside the coarse adjustment knob and is used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses. 4. Ocular lens The ocular lens‚ or eyepiece‚ magnifies the image. It contains a measuring scale called and ocular micrometer. The ocular
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viewing very small objects‚ typically magnified several hundred times. It consist of different lenses such as: Scanning = 4X‚ Low power = 10X‚ High power = 40 or 43X‚ Oil Immersion = 100X. A microscope is an instrument to see objects too small for the naked eye. It’s a device used for magnifying small entities which cannot be seen by the eyes without any additional aid‚ it uses combination of magnifying lenses with a rotator that can be used to adjust the item view option. It is made out of glass that
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function of each A. Ocular Lens- the lens on the top of the microscope that look into with 10x or 15x power. B. Body Tube- Connects eye piece to the objective lens C. Revolving Nosepiece- holds two or more objectives lenses and can be rotated easily to change power D. Objective lenses- 4x‚ 10x‚ 40x‚ and 100x powers E. Stage- The flat plate where the slides are placed for observation F. Diaphragm- Generally a five hold disc placed under the stage. Used to vary the intensity and size of the cone of
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3. Stage - Supports the slide being used. You place the slide on it. 4. Mirror or Light - Reflects or shines light upward through the diaphragm to illuminate the specimen. 5. Nosepiece - Holds the different objective lenses; allows the lenses to rotate for viewing. 6. Base - Supports the microscope. One hand is placed under this when carrying the microscope. 7. Eyepiece - Contains a lens that magnifies about 10X. You look through this. 8. Fine Adjustment Knob
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gender lens usually contains less than 10 points. Each point focuses on the distinct realities of men and women. Where appropriate‚ the distinct realities of girls and boys are included. Many gender lenses include: planning‚ implementing‚ monitoring and evaluating. Other gender lenses focus
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on objective 10x or 40x 8) What are the proper two items to clean the microscope lens? And when do you clean it? To properly clean the microscope you clean it with lens cleaner and lens paper so it does not scratch the lenses. You clean off all lenses including ocular lenses. Be sure not get the oil on the 10x or 40x objective. Lower stage and nose piece and set to 10x objective. Put dust cover on and return to cubby. 9) Number the following choices in chronological order. (use lab manual)
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shape you described in the question above. What do they look like? Answer: The onion root appears to be a long oval type shape with lots of tiny black dots inside it. 5. What is the first step normally taken when you look through the ocular lenses? Answer: To adjust the Ocular lens so that there is only one light circle
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answer. Which microscope would be useful when studying the internal structure of a minute specimen? (2 points) 2.List two jobs where microscopes are used. Describe in what capacity they are used. (2 points) 3.Why is a special paper used to clean the lenses of a microscope? (1 point) 4.State the name of each of the tagged parts on the microscope shown above in Step 1 of the Procedures: (11 points) a. b. c. d. e. f. g. h. i. j. k. 5.What type of microscope has primarily been used in this
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