Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
12th Edition
ISBN: 9780134605203
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 1, Problem 2Q
Summary Introduction
To write:
The objective lens that is closest to the slide when it is in focus.
Introduction:
Microscopy is a technique of observing an object under a microscope that is not observable with naked eyes. The types of microscopy include scanning probe microscopy, electron microscopy, and optical microscopy. Optical microscopy uses light for illuminating and lenses to magnify the sample.
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which objective lens is in place if the object you are viewing is magnified 1000x? (assume ocular lens magnification = 10x)
Why is it advisable to start first with the low-power lens when viewing a slide?
Which objective lens has the least working distance?
Chapter 1 Solutions
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
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- What is the diameter of the scanning field of view in millimeters? ___________arrow_forwardWhat is the magnification power of the objective lenses? How does the eyepiece compare to the objective lens? What is a magnification power? Differentiate between the fine and the coarse adjustment knobs.arrow_forwardWhich objective is never used with the course focus adjustment knob?arrow_forward
- Can you use the fine adjustment knob so that you can focus on all three threads simultaneously when viewing them under high power? Why or why not?arrow_forwardThe most suitable angle for the cone of vision for drawing perspective is 60° 45° 30° 15°arrow_forwardWhy must the subject stand 20 feet from the Snellen eye chart to test distance vision?arrow_forward
- Which 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_forwardWhat’s the TM when viewing the letter using 4X and 10X objective lens?arrow_forwardMatch the term with it's definition from the lab Group of answer choices Field of View [ Choose ] occular lens x objective lens the width of the circle of light the distance from the slide to the bottom of the lens clarity of an image Working Distance [ Choose ] occular lens x objective lens the width of the circle of light the distance from the slide to the bottom of the lens clarity of an image Resolution [ Choose ] occular lens x objective lens the width of the circle of light the distance from the slide to the bottom of the lens clarity of an image Total Magnification [ Choose ] occular lens x objective lens the width of the circle of light the distance from the slide to the bottom of the lens…arrow_forward
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