Homework Answers
8. a. condenser bends the light so more light rays are in a smaller area to go through the slide and specimen.
Condenser lens is use to focus the light onto the specimen. A condenser is an optical lens which render a divergent beam of light from a point source into parallel or converge light to illuminate an object.
9. b. The immersion oil concentrates light to help with resolution of the image.
Immersion is a technique used to increase the resolution of an image by placing an immersion oil of high refractive index .
10. The iris diaphragm is located below the stage.It control the amount of light coming to specimen.It is mostly located above condenser and below stage.
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Objective lens Refracted (lost) light rays, VY Immersion oil Slide Condenser - ( Light source Figure...
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...
Immersion oil is used to reduce the amount of refracted light rays when using higher objective...
Immersion oil is used to reduce the amount of refracted light rays when using higher objective lenses and thereby increase solution. True False
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....
3. In a bright-field compound microscope, starting from the illuminator, follow the pathway of light: a....
3. In a bright-field compound microscope, starting from the illuminator, follow the pathway of light: a. The first lens that provides magnification of the image is the c lor lens. b. The lens that further enlarges the image ten more times is the low power nel lens. 4. Open the iris diaphragm all the way while using the low power objective. What happens to the field of view and the quality of the image? Now close the iris diaphragm all...
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...
EXERCISE 1:USE AND CARE OF THE MICROS D CARE OF THE MICROSCOPE 11. Alter use, remove...
EXERCISE 1:USE AND CARE OF THE MICROS D CARE OF THE MICROSCOPE 11. Alter use, remove the slide, wipe oil of it, put dist cover on the microscope, and return it to the designated area. 12. When a problem does with the microscope obtain help from the instructor. Do not use other microscope unless yours is declared out of action." FIGURE 14 Focusing the condenser. () Ching low power, lower the condenser til distinct circle of light is visible. Cester...
Lab Exercise 7 5. Place the s PROCEDURE (letter "e" prepared slide) the equation on the...
Lab Exercise 7 5. Place the s PROCEDURE (letter "e" prepared slide) the equation on the lens is in place 1. Record the details from the objective lenses and the ocular lens. Use the ea previous page to determine the total magnification when each objective len and enter the results in the table below: power (40 will come will, do no if necessar the course Your micro lens to anc Reposition Magnification of ocular lens lens Total magnificati Stripe color...
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"...
(1 point) READING 4 The resolution of a microscope is diffraction limited, just as the eye, but gains a significant advantage because an object can be placed very close to its objective lens. The sma...
(1 point) READING 4 The resolution of a microscope is diffraction limited, just as the eye, but gains a significant advantage because an object can be placed very close to its objective lens. The smallest resolvable linear separation xTor an ordinary light microscope is: where λ is he wavelength o light used, and Θ ls he half Viewing angle 0 he obiective The quantity n sne s ca e the num enca aperture of he obiective where n s the...
help me Focusing the Mlerescope 1. Turn the nosepiece until the lowest power obiective lens (4x...
help me
Focusing the Mlerescope 1. Turn the nosepiece until the lowest power obiective lens (4x - shortest objective) is in straight alignment over the stage. Turn until you feel or hear a click. 2. Always begin focusing with the lowest power obiective lens-4X (scanning power). 3. Place a slide with the word "ro" on the stage, clin in place Center the word "roo" in the middle of the stage over the light source aperture. 4. With the course adjustment...
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...
Immersion oil is used to reduce the amount of refracted light rays when using higher objective lenses and thereby increase solution. True False
3. In a bright-field compound microscope, starting from the illuminator, follow the pathway of light: a. The first lens that provides magnification of the image is the c lor lens. b. The lens that further enlarges the image ten more times is the low power nel lens. 4. Open the iris diaphragm all the way while using the low power objective. What happens to the field of view and the quality of the image? Now close the iris diaphragm all...
EXERCISE 1:USE AND CARE OF THE MICROS D CARE OF THE MICROSCOPE 11. Alter use, remove the slide, wipe oil of it, put dist cover on the microscope, and return it to the designated area. 12. When a problem does with the microscope obtain help from the instructor. Do not use other microscope unless yours is declared out of action." FIGURE 14 Focusing the condenser. () Ching low power, lower the condenser til distinct circle of light is visible. Cester...
Lab Exercise 7 5. Place the s PROCEDURE (letter "e" prepared slide) the equation on the lens is in place 1. Record the details from the objective lenses and the ocular lens. Use the ea previous page to determine the total magnification when each objective len and enter the results in the table below: power (40 will come will, do no if necessar the course Your micro lens to anc Reposition Magnification of ocular lens lens Total magnificati Stripe color...
(1 point) READING 4 The resolution of a microscope is diffraction limited, just as the eye, but gains a significant advantage because an object can be placed very close to its objective lens. The smallest resolvable linear separation xTor an ordinary light microscope is: where λ is he wavelength o light used, and Θ ls he half Viewing angle 0 he obiective The quantity n sne s ca e the num enca aperture of he obiective where n s the...
help me
Focusing the Mlerescope 1. Turn the nosepiece until the lowest power obiective lens (4x - shortest objective) is in straight alignment over the stage. Turn until you feel or hear a click. 2. Always begin focusing with the lowest power obiective lens-4X (scanning power). 3. Place a slide with the word "ro" on the stage, clin in place Center the word "roo" in the middle of the stage over the light source aperture. 4. With the course adjustment...
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