Practical 4 Title: To study the magnification of a real image by a convex lens. Objective: To determine the focal length of a convex lens. Apparatus and Materials: 1. Light box 2. Convex lens 3. Plasticine 4. Meter rule 5. Screen 6. Short transparent ruler Setup: 1. Set up the apparatus as shown in Figure 4-1. Figure 4-1 Theory: From the lens equation: Where: p = object distance q = image distance Linear magnification‚ Procedure: 1. The apparatus
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closer view). Both types are relatively similar in size and can be picked up‚ moved and set on different flat surfaces easily. Compound and dissecting microscopes have many similar parts‚ including a lens‚ stage‚ focus knob and coaxial controls that allow you to adjust the distance between the lens and the stage. 10. Same as 1 11. Suppose you measure a scanning (4X) field of vision diameter with a stage micrometer and it is 2mm. If high power is 40X and gives 10X more magnification than scanning
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• Total Magnification- is controlled by duplicating the eyepiece power by the target focal point set up. This is usually in 10x mag. 3. Define Resolution. • Resolution- is the briefest separation between two separate focuses in a magnifying lens’ field of perspective that can in any case be recognized as unmistakable substances. 4. What is the function of the diaphragm on the microscope? • The diaphragm reduces the light from under the stage which can improve the image and it controls
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of the political consequences was that Mao wanted to reassert himself and regain power in China after he was demoted because of the failure of the Great Leap Forward. Mao had the gained the support of Lin Biao and the PLA therefore launched the Cultural Revolution. Mao wanted to get rid of anti communist ideas and opposition that would pose a threat to his leadership and foreign ideas that would influence the people of China. As a long-term consequence of getting rid of anti communist ideas‚ Mao
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University of Phoenix Material Cross-Cultural Communication Matrix Use the matrix to complete the country information. Write 3-4 sentences for each item. a. Access the Business Around the World information by using the url: http://www.mhhe.com/business/buscom/bcommonline/. b. Click on the map on the lower left corner of the page. Select three regions of the world to research by clicking on the map. Select one country from each of the three regions you selected to research
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Stero microscope low power instrument used in visualizing large objects at low magnification (5-50X); produces unreversed‚ right side up‚ 3-d image; unlike the compound microscope. 1. Prepare slide 2. Turn on transformer 3. Use lowest power lens 4. One eye closed‚ find and focus the object sharply 5. Close eye open the other 6. Keep both eyes open when viewing object Compound microscope Magnifies to about 1000 times with some modification‚ can be increase 2-3 times (but that’s about
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microscope focuses light on a tiny bright spot of the specimen‚ the microscope accumulates light from the well-illuminated specimen in the stage of the microscope. The small objective lens then brings the image of the object into focus within the microscope’s tube‚ and is then magnified by a second lens‚ called an ocular lens or the eyepiece. The specimen in an optical microscope can be rather thick. In contrast‚ unlike the light microscope‚ the electron microscope visualises objects using a thin beam
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parts: Data part 2 After turning the light on‚ what two components allow one to adjust the light intensity of the microscope? Rheostat and the iris What structure holds the slide in place on the stage of the microscope? Spring load clip Which lens is in the light path? 4 x Of the stage adjustment knobs‚ the larger knob / Y-adjustment (on the top) moves the slide in which direction? In which direction does the smaller / X-adjustment knob (on the bottom) move the slide? The top y moves
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convex lens‚ by using the lens equation: 1/f=1/u+1/v * Independent variables: * Screen * lens * Dependent variables: * distance between the source of light and the lens “V” which is “X” value * distance between lens and the screen “ Y value” * Controlled variables: * ruler * screen size * source of light * Hypothesis: When the lens is displaced further away from the light “image” source the focal point is going to get smaller‚ and when the lens is approached
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person do not help the society to develop but rather takes it steps backward focusing on the negativity around. B. Covering the real image and real facts about people by focusing on criticism and mindless humor. C. Bassem’s show came as a magnifying lens to reveal both negative and positive aspects about the government and people in authority. 1. Leila Fadel in her article "Egypt’s Jon Stewart Says He Won’t Back down amid Charges" says that Indeed‚ it is a gloomy time in Egypt. The political transition
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