Microbiology: An Introduction, 11th Edition

Published by Benjamin Cummings
ISBN 10: 0321733606
ISBN 13: 978-0-32173-360-3

Chapter 3 - Observing Microorganisms Through a Microscope - Study Questions - Review - Page 73: 3d

Answer

Diaphragm

Work Step by Step

The diaphragm is right above the illuminator. The point of the diaphragm is to adjust the amount of light that the microscope is letting through, thus allowing the viewer to change how the microscope shines light on the substance.
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