Microbiology with Diseases by Taxonomy (5th Edition)
5th Edition
ISBN: 9780134019192
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Question
Chapter 4, Problem 5MC
Summary Introduction
Introduction:
Lens is the major aid to identify and visualize smaller objects. The lenses help in magnifying a specimen and increase resolution of the specimen. The various properties of lens such as curvature, thickness and so on, make it suitable as a helping tool of microscope.
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Total Magnification is obtained by
Select one:
A. Magnifying power of both the objective lens and eyepiece
B. Magnifying power of eyepiece
C. Magnifying power of condenser lens
D. Magnifying power of the objective lens
The total magnification achieved when using a 100× oil immersion lens with 10× binocular eyepieces is a. 10×. b. 100×. c. 200×. d. 1000×. e. 2000×.
Match the objective lenses with permissible behaviors: For some rows you’ll list more than 1 objective lens
Adjust focus using coarse adjustment knob
Adjust focus using the fine adjustment knob
Use oil to connect the slide to the lens
Adjust the light using the condenser and/or iris diaphragm
A. 4X B. 10X C. 40X D. 100X
Chapter 4 Solutions
Microbiology with Diseases by Taxonomy (5th Edition)
Ch. 4 - Prob. 1MCCh. 4 - A nanometer is ________ than a micrometer. a. 10...Ch. 4 - Prob. 3MCCh. 4 - Curved glass lenses _________ light. a. refract b....Ch. 4 - Prob. 5MCCh. 4 - Prob. 6MCCh. 4 - Which of the following types of microscopes...Ch. 4 - Prob. 8MCCh. 4 - Prob. 9MCCh. 4 - Prob. 10MC
Ch. 4 - If an objective magnifies 40 and each binocular...Ch. 4 - The type of fixation developed by Koch for...Ch. 4 - Immersion oil ________ (increases/decreases) the...Ch. 4 - Prob. 4FIBCh. 4 - Prob. 5FIBCh. 4 - Prob. 1VICh. 4 - Label the microscope.Ch. 4 - Prob. 1SACh. 4 - Critique the following definition of magnification...Ch. 4 - Prob. 3SACh. 4 - Prob. 4SACh. 4 - Prob. 5SACh. 4 - Give three characteristics of a specific epithet.Ch. 4 - Prob. 7SACh. 4 - Prob. 8SACh. 4 - Prob. 1CTCh. 4 - Prob. 2CTCh. 4 - Prob. 3CTCh. 4 - Prob. 4CTCh. 4 - Prob. 5CTCh. 4 - In what ways are the Gram stain and the acid-fast...Ch. 4 - Microbiologists have announced the discovery of...Ch. 4 - Why is the genus name Coccus placed within...Ch. 4 - A clinician obtains a specimen of urine from a...Ch. 4 - Using the following terms, fill in the following...Ch. 4 - Prob. 1TMWCh. 4 - Prob. 2TMWCh. 4 - Prob. 3TMWCh. 4 - Prob. 4TMWCh. 4 - Prob. 1EDCS
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Similar questions
- The most useful adjustment for increasing image contrast in lowpower magnification is a. closing down the diaphragm. b. closing one eye. c. opening up the diaphragm. d. placing a drop of oil on the slide. e. using a blue filter.arrow_forwardThe coarse and fine focus knobs adjust the distance betweena. the objective and ocular lenses.b. the ocular lenses.c. the ocular lenses and your eyes.d. the stage and the condenser lens.e. the stage and the objective lens.arrow_forwardBefore the oil immersion lens is rotated into place, you should a. center the object of interest in the preceding lens. b. lower the stage with use of the coarse focus adjustment knob. c. place a drop of oil on the slide. d. Both (a) and (c) are correct. e. All are correct.arrow_forward
- What is the rule for determining total magnification? A. Ocular lens magnification + objective lens magnification = total magnification B. Ocular lens magnification - objective lens magnification = total magnification C. Ocular lens magnification x objective lens magnification = total magnificationarrow_forwardAll other things being equal, the objective lens with the highest value for numerical aperture (N.A.) will always have the lowest______? A. Field Of View B. Magnification C. Image Quality D. Limit Of Resolutionarrow_forwardHow can you improve contrast when viewing a specimen?. What should you do if you have difficulty focusing in high power?. Why is important to use the fine adjustment nob only when focusing while using the high dry objective lens?arrow_forward
- Amplitude summation occurs in phase-contrast optics when both direct and diffracted rays area. in phase.b. in reverse phase.c. off 41 wavelength.d. None of these is correct.arrow_forward1. Calculate the total magnification for the following: A. Scanning power objective = 5x; eyepiece =4x B. High power objective = 40x; eyepiece= 5x c. Low power objective = 10x; eyepiece= 10xarrow_forwardWhich of the following affect the resolution of a specific objective lens? CHECK ALL CORRECT CHOICES. Magnification Numerical Aperture (NA) Warelengthrofgnt combg tough t Field of Viewarrow_forward
- To obtain a 400X magnification image you may choose a 40X objective lens with a 10X projector lens, or a 20X objective lens with a 20X projector lens. What are the differences in their image quality?arrow_forwardwhat happens when you change the objective lensearrow_forwardIn this image a stage micrometer and an ocular micrometer are aligned so that the 10 o.u. line aligns with the 100um line. The 200um line of the stage micrometer overlaps with the 90 o.u. line of the ocular micrometer. What is the calibration for this lens? eyepiece graticule 40 50 60 70 s0 9 100 stage micrometer 0.8 um/ou O 8 um/ou O 1.25 um/ou 0.25 um/ouarrow_forward
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