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What is the function of the iris diaphragm in compound microscope? To what part of the human eye would you
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- Alternatives used on a light microscope might improve vision by using a different light source. Name two types of light sources.What's the significance of studying microscope? What benefit will it give? and to whom?4. Study the microscope drawing on page 11 and the description of the parts on the opposite page and then answer these questions. [a]What is the total magnification when the 4ox objective lens is being used? [b]Which objective lens "sees" the largest area of the slide? [c]Which focusing knob is used at high power? [d]What devise is used to change the amount of light coming through the object? devices are aná
- What is the purpose of using microscopes? If you need to move the microscope, describe how you should carry it. What three things change as you increase magnification? On the compound microscope, what power must be in place when you first find an image in themicroscope? On the compound microscope, which adjustment knob is used for bringing the specimen intofocus? On the compound microscope, which adjustment knob is used for sharpening the image of thespecimen after it is focused? On the compound microscope, which adjustment knob should you use on the high power? On the compound microscope, how do you change the objective lenses? What should be included when sketching or drawing what is seen through the microscope How do you properly use a microscope?Why should you look through a microscope with both eyes open?Why don’t most light microscopes use 303 ocular lenses for greater magnification?
- By what the transparent lens in the human eye is held in its place?What description best describes the compound light microscope? Uses a beam of electrons is transmitted through a specimen to form an image. Has more than one lens and its own light source. In this type of microscope, there are ocular lenses in the binocular eyepieces and objective lenses in a rotating nosepiece closer to the specimen. An optical imaging technique for increasing optical resolution and contrast of a micrograph by means of using a spatial pinhole to block out-of-focus light in image formation. Designed for low magnification observation of a sample, typically using light reflected from the surface of an object rather than transmitted through it.Which of the following is true about the relationship between depth of field and magnification? There is no relationship. When magnification increases, depth of field decreases. When magnification increases, depth of field increases. Stereomicroscopes offer a lesser depth of field than compound microscopes. The depth of field of a microscope determines how much magnification it can achieve.