football match and so on‚ so by that we must that gift and use it for good purposes and not bad one Objectives To Gather Information About : -Device used to overcome the limitation of sight. -Device used to overcome the limitation of hearing. Device used to overcome the limitation of sight. (Microscope) [pic] Instrument to magnify object such as virus Objective lens and eyepiece magnifying image Types: light microscope‚ electron microscope (Magnifying glass)
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enables a person to change objectives without major focusing adjustments? resolving power magnification parfocal focusing resolution Question 2 of 25 How does closing the iris diaphragm affect image brightness and contrast? decreases both increases both decreases brightness and increases contrast increases brightness and decreases contrast decreases brightness but has no effect on contrast Question 3 of 25 Which of the following objectives has the shortest working
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cabinet. There are 3 main parts of the microscope such as illuminating parts‚ magnifying parts and mechanical parts. The sub-parts in illuminating parts are electric lamp and iris diaphragm while the sub-parts of magnifying parts are eyepiece and objective lens. The mechanical parts consist of most sub-parts among these three such as barrel‚ arm‚ stage‚ coarse focus knob‚ fine focus knob and base. Figure 1 : Fully Assembled Optical Microscope
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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
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your answer in the appropriate blank on your student answer sheet. 1. Which part of the microscope would you adjust to regulate the amount of light reaching the specimen? _________ 2. Which part of the microscope allows light to pass from the objective to the eyepiece? _______ 3. Information about which two lettered parts is needed in order to determine the total magnification of an object viewed with the microscope in the position shown? ____________ and ____________ 4.. Which lettered part should
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be left on the lens making it appear dirtier than before 4. State the name of each of the tagged parts on the microscope shown above in step 1 of the Procedures: (11 points) a. Ocular Lens b. Body Tube c. Arm d. Objective Lenses e. Stage f. Condenser g. Diaphragm h. Coarse Focusing Knob i. Illuminator j. Base k. Fine Focusing Knob 5. What type of microscope has primarily been used in this lab? (1 point) Compound
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movement of the stage when using the fine adjustment knob The coarse moves the stage at a fast level and the fine at a slower level When is it appropriate to use the coarse adjustment knob? It is apporatiate to use coarse on low power. Which objective lens do we begin with when viewing a slide? The 4 x When using the stage adjustment knobs while looking through the microscope‚ turning the large knob (on the top) to the right moves the image _up___________ while turning it to the left
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Lab Title: Microscopy Objective: To learn how to use and care for a microscope and to know the parts of a compound microscope and to efficiently use the microscope to focus on specimen. Introduction A microscope is an optical instrument used for 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
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The ocular micrometer has no units. 5. Objective lens The objective lens gathers light from the specimen‚ magnifies the image of the specimen‚ and projects the magnified image into the body tube. Since no single objective lens can fulfill all the needs of someone using the microscope‚ several objective lenses of varying magnifications and numerical aperture are mounted on the rotation nosepiece. The nosepiece must click into place for the objective lens to be in proper alignmrnt. You will
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these devices help us to make our live easier. INTRODUCTION 2 OBJECTIVE 3 APPRECIATION 4 LIMITATIONS OF SIGHT 5 LIMITATIONS OF HEARING 6 DEVICES TO OVERCOME LIMITATIONS OF SIGHT 7 DEVICES TO OVERCOME LIMITATIONS OF HEARING 8 PHOTOS OF DEVICES – LIMITATIONS OF SIGHT 9 PHOTOS OF DEVICES – LIMITATION OF HEARING Humans have sight and hearing limitation. Without any devices‚ our sight and hearing was limited. the objective of learning about the limitation of sight and hearing: ● I have
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