2. Match each part to its function. Stage Stage adjustment knobs Light intensity knob Interpupillary adjustment Coarse focus knob Fine focus knob Iris diaphragm Condenser Condenser adjustment lever Closes down the amount of light, and sharpens image. Lifts or lowers the condenser; the closer to the specimen the better. Should be set so that both eyepieces are the same length. Moves a slide side-to-side and front-to-back. Changes lamp brightness. Should only be detached by holding the plug. Aligns light waves before they pass through specimen. Provides flat surface for specimens. Allows both eyes to see an image simultaneously.

2. Match each part to its function. Stage Stage adjustment knobs Light intensity knob Interpupillary adjustment Coarse focus knob Fine focus knob Iris diaphragm Condenser Condenser adjustment lever Closes down the amount of light, and sharpens image. Lifts or lowers the condenser; the closer to the specimen the better. Should be set so that both eyepieces are the same length. Moves a slide side-to-side and front-to-back. Changes lamp brightness. Should only be detached by holding the plug. Aligns light waves before they pass through specimen. Provides flat surface for specimens. Allows both eyes to see an image simultaneously.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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c. What will be the magnification of the specimen (Eyepiece = 10X)? If it is seen under the objective lens of a. 5X b. 40X c. 100X
Which of the following terms describe how fast light travels through the medium? O All are correct Angular aperture O Limit of resolution Refractive index
What part of the microscope is used to make large adjustments to the height of the stage? coarse focus O eye pieces fine focus slide holder adjustment O iris diaphragm
what happens when you change the objective lense
The purpose of the ocular lens is to O increase the light. magnify the image from the objective lens. O decrease the light. O improve resolution. O decrease the refractive index.
what happens to brightness of the field of view when you switch to the high power objective
2. Calculate the field of views using the given information: A.Scanning power objective= 5x; low power objective=10x; eyepiece= 5x; scanning power field of view (FOV)= 3.5 mm; what is the low power field of view?
2. Copy the table below into your lab notebooks. Then, fill in the blanks using the information provided in the "Using our Microscopes" section (previous page) ana uhe table at the end of the "Skill Building Exercises" section (2 pages aheada). Power Magnification of Magnification of Objective Lens Total Field Ocular Lens diameter Magnification (TM) (тт) Scanning Low High
Match the lens (condenser, high-dry, low-power, ocular, or oil immersion) to itsdescription. Choices may be used more than once. Diopter adjustments can be made to this lens.
Immersion oil is necessary when using the 100x objective on a compound light microscope O otherwise the image will be fuzzy. otherwise too much light is lost to refraction. O to prevent the slide from scratching the lens. O to lubricate the objective. O otherwise too much light is lost to refraction and the image will be fuzzy.
5)The simulation asks you about the TOTAL magnification of when you use the 40x objective. This total magnification is based on the the amount of magnification provided by the ocular lens in the eyepiece, as well as the magnification of the objective. Based on the answer given in the simulation, what is the magnification of the ocular lens? (enter the number only) Answer value
10. Why is oil used under the oil immersion lens instead of water? (1 Point) O oil is thicker than glass and so it will focus the image better O Oil is less dense than water and therefore it will help focus the image better O oil and glass both refract light at the same degree and so oil will help focus the image better O oil and air both refract light at the same degree and so oil will help focus the image better O All of the above