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ANP

The Microscope

QuestionAnswer
What total magnification with be achieved if the 10x eyepiece and the 10x objective are used? 100×
What total magnification will be achieved if the 10x eyepiece and the 100x objective are used? 1,000×
Microscopic objects often are measured in micrometers. A micrometer equals 1/1,000 of a millimeter and is symbolized by µm. In micrometers, what is the diameter of the scanning power field of view? About 4,500 micrometers
The diameter of the scanning-power (lowest power, 40X) field of view is 4.4 millimeters. True
If a circular object or specimen extends halfway across the scanning-power field, what is its diameter in millimeters? About 2.2 mm
In micrometers, what is its diameter? About 2,200 micrometers
The diameter of the field of view at low-power (100X) is 1.8 millimeters True
How does the diameter of the scanning power field of view compare with that of the low-power field? The diameter of the scanning-power field of view is about 2.6 times greater than that of lower power filed of view.
Why is it more difficult to measure the diameter of the high-power field of view than the low-power field? Student is unable to see two adjacent mm lines on the scale in a high-power field of view.
What change occurred in the light intensity of the field of view when you exchanged the low-power objective for the high-power objective? Light intensity is decreased when high-power objective is used.
Increases or decreases the light intensity Iris diaphragm
Platform that supports a microscope slide Stage
Concentrates light onto the specimen Condenser
Causes stage (or objective lens) to move upward or downward Adjustment knob
After light passes through the specimen, it next enters this lens system Objective lens system
Holds a microscope slide in position Stage (slide) clip
Contains a lens at the top of the body tube Eyepiece (ocular)
Serves as a handle for carrying the microscope Arm
Part to which the objective lenses are attached Nosepiece
Circular area seen through the eyepiece Field of view
Created by: bonitasoul