the following orientations of the letter would the viewer see? b p q d Question 6 of 25 Which of the following procedures should be done just prior to adjusting the diopter‚ when using the compound microscope? Clean all lenses with lens paper Turn the light on Adjust the iris diaphragm Adjust the fine focus Question 7 of 25 Two parts of the microscope that regulate the amount of light visible through the ocular are the: fine and coarse adjustment knobs ocular and
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distance of its images‚ di ‚ and the focal length‚ f‚ of a spherical mirror. In symbols: + = LENSES One of the most useful and simplest optical devices we have. Types of Lenses: a. Concave Lens – The rays are diverged by the lens‚ thus calling it a diverging lens b. Convex Lens – are designed so that parallel rays cross
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And that determines what kind of lens the optometrist will work with. What are the eye conditions? If seeing: * Light rays Light rays Retina Retina Retina Retina Light rays Light rays Focal point Focal point Far blurry objects (near-sightedness) use spherical corrective lenses with negative power. EYE EYE (Near-sightedness) correction (Near-sightedness) correction Negative spherical lens Negative spherical lens Focal
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Microscope | | 1. | Use various internet resources to write the term that matches each meaning below:Used as a handle to carry microscope = | | 2. | Lenses attached to the nosepiece | | 3. | Concentrates light on the object | | 4. | Lens you look through | | 5. | Platform on which slides are placed | | 6. | Rotates to change objectives | | 7. | The shortest objective | | 8. | The longest objective | | 9. | Control knob used for sharp focus | | 10. | Control
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Microscopy and the Metric System Margaret E. Vorndam‚ M.S. Version 42-0090-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports
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false. If true‚ write a “T” on the answer line. If false‚ write a word or phrase in the blank to make the statement true. F | 1) The microscope lens may be cleaned with any soft tissue. | F | 2) The coarse adjustment knob maybe used in focusing with all objective lenses. | T | 3) When beginning to focus‚ the lowest power lens should be used. | T | 4) Resolution decreases as the amount wavelength of light increases. | F | 5) When focusing always focus toward
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resulting in an image that your naked eye would ordinarily see if looking at the slide. The image is then magnified by the lower (objective) lens. The objective lens flips the image and magnifies it by bending the light. The light is bent as it passes through the convex surface on either side of the lens material. The eyepiece acts as a weaker version of the objective lens by flipping the image again and magnifying it further. Compound microscopes are used most commonly to
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Lab 2: The Metric System and Microscope Name _________________________ Date __________________________ Section 1: The Metric System The Metric System is known as the International System of Measurement. The Metric System is based on Standard-prefixes that correspond to ‘multiples of 10’. The measurements of volume (the liter)‚ mass (the gram)‚ and length (the meter) are the baseline for all metric unit conversion factors. In the United States‚ the English System is more commonly used;
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Microscope Parts & Function Parts of the Microscope |[pic] |1. Eyepiece |Contains a magnifying lens that focuses | | | |the image from the objective into your | | | |eye. | |
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lenses (ocular and objective). Binocular microscopes have two eyepieces while the monocular ones have one eyepiece. The ocular lens of a compound light microscope usually has a magnification of 10x (means that the specimen to be viewed is magnified 10 times). The objective lens consists of a revolving nose piece with different degrees of magnification. The objective lens with the magnification of 10x is called ‘the low power’ while the one with 40x is called ‘the high power’. Total magnification
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