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Immersion oil is used to reduce the amount of refracted light rays when using higher objective...
Objective lens Refracted (lost) light rays, VY Immersion oil Slide Condenser - ( Light source Figure...
Objective lens Refracted (lost) light rays, VY Immersion oil Slide Condenser - ( Light source Figure 2 Refractive index in air and in mineral oil Carrera attachment Eyeplece focular lens) Light pathway LU Arm Body tube Objective Coarse and fine focusing adjustment knob Stage Light source Spircimen Condenser Illuminator Figure 3 Pathway of light in a compound scope Microscopy/Microscopic Examination of Stained Cell Preparations Q8 Use Figure 2 and 3 in the lab info to answer the following question. Which...
24. Immersion oil is used between the specimen and the oil immersion objective A) to cut...
24. Immersion oil is used between the specimen and the oil immersion objective A) to cut down the intensity of light B) to keep light rays from scattering C) to allow the slide to move easier on the stage D) to improve the color on the slide E) none of the above = identify 25 In the Gram stain, the iodine serves as the A) primary stain B) fixative C) decolorized D) mordant E) counterstain 26. Cross reference of all...
A microscope objective is used with a numerical aperture NA= 1.0 and immersion oil of refractive...
A microscope objective is used with a numerical aperture NA= 1.0 and immersion oil of refractive index n = 1.414. Assuming that the wavelength of light λ =0.486 µm, find the resolution of the microscope and its aperture angle α.
1. Name at least 3 ways you can control the amount of light that reaches the...
1. Name at least 3 ways you can control the amount of light that reaches the ocular lens. 2. Define resolution. What is the limit of resolution for the light microscope? 3. What effect does the wavelength of light used have on resolution? 4. If you view a bacterial smear under the oil immersion lens, but forget to add oil, will the image still be just about as clear as if you had added the oil. 5. Define parfocal. 6....
Which of the following demonstrates the proper use of the compound light microscope? A. When using...
Which of the following demonstrates the proper use of the compound light microscope? A. When using the oil immersion lens, we can also use the coarse adjustment knob to focus to get a clearer image. B. We should adjust the iris diaphragm to allow more light in at higher magnifications. C. If we are not able to get a clear image with the oil immersion lens, we should bring the high dry(40x) into position to refocus. D. When viewing a...
Lab activities and worksheets Read through this section before you get to lab so you are...
Lab activities and worksheets Read through this section before you get to lab so you are aware of what you will be doing for this lab. Microscope labeling It is important to know the structure of something in order to know how it works and how to use it. Use the following list of parts of a compound microscope to label the diagram. Be sure to understand the functions of each part. Ocular: this is the lens at the top...
please please help with all of them no thorough explanation needed! 5. Select the most appropriate...
please please help with all of them no thorough explanation needed! 5. Select the most appropriate answer. When using a dichotomous key outside to identify unknown organisms one should A. not remove parts of the plant or disrupt the ecosystem B. be aware of hazards such as ticks and poison ivy C. should write down the steps followed on the key. D. Be aware that your best attempts to identify a specimen might be disrupted by the presence of sexual...
5. .... carries the greatest amount of energy a) X-rays b) gamma rays c) visible light...
5. .... carries the greatest amount of energy a) X-rays b) gamma rays c) visible light d) infrared rays 6. The E. and B fields in electromagnetic waves are oriented a) parallel to the wave's direction of travel, as well as to each other. b) parallel to the waves direction of travel, and perpendicular to each other. c) perpendicular to the wave direction of travel, and parallel to each other. d) perpendicular to the wave's direction of travel, and also...
100. Flare is: (a) the widest frequency of light that can enter an objective (b) the...
100. Flare is: (a) the widest frequency of light that can enter an objective (b) the bending of light as it passes through different substances (c) wavelength/2NA (d) when the beam of light "spreads" wider than the objective's "hole" (e) wavelengths of light too short to enter the objective 101. Coccobacillus shaped bacteria are considered to be_?_ (a) cocci (b) bacilli (c) diplobacilli (d) diplococci (e)answers a and b only 102. This microscope is used for cheap and quick "'diagnosis"...
When light passes between media of different densities, it is bent or refracted. True False Flag...
When light passes between media of different densities, it is bent or refracted. True False Flag this Question Question 2 3 pts Meniere’s disease is caused by an increase in the intraocular pressure. volume of endolymph. none of the above volume of blood. Flag this Question Question 3 3 pts An area of the retina that contains only cones, and is the site of sharpest vision, is the outer segment. inner segment. fovea. optic disc. Flag this Question Question 4...
Objective lens Refracted (lost) light rays, VY Immersion oil Slide Condenser - ( Light source Figure 2 Refractive index in air and in mineral oil Carrera attachment Eyeplece focular lens) Light pathway LU Arm Body tube Objective Coarse and fine focusing adjustment knob Stage Light source Spircimen Condenser Illuminator Figure 3 Pathway of light in a compound scope Microscopy/Microscopic Examination of Stained Cell Preparations Q8 Use Figure 2 and 3 in the lab info to answer the following question. Which...
24. Immersion oil is used between the specimen and the oil immersion objective A) to cut down the intensity of light B) to keep light rays from scattering C) to allow the slide to move easier on the stage D) to improve the color on the slide E) none of the above = identify 25 In the Gram stain, the iodine serves as the A) primary stain B) fixative C) decolorized D) mordant E) counterstain 26. Cross reference of all...
Lab activities and worksheets Read through this section before you get to lab so you are aware of what you will be doing for this lab. Microscope labeling It is important to know the structure of something in order to know how it works and how to use it. Use the following list of parts of a compound microscope to label the diagram. Be sure to understand the functions of each part. Ocular: this is the lens at the top...
5. .... carries the greatest amount of energy a) X-rays b) gamma rays c) visible light d) infrared rays 6. The E. and B fields in electromagnetic waves are oriented a) parallel to the wave's direction of travel, as well as to each other. b) parallel to the waves direction of travel, and perpendicular to each other. c) perpendicular to the wave direction of travel, and parallel to each other. d) perpendicular to the wave's direction of travel, and also...
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