Multiple Choice
Which part of the microscope is used to vary the magnification of the view of the specimen?
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5. Cell Components
Microscopes
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Which part of a compound light microscope is primarily responsible for focusing the image by moving the stage up and down?
A
Diaphragm
B
Objective lens
C
Eyepiece (ocular lens)
D
Coarse adjustment knob
Verified step by step guidance1
Understand the function of each part of the compound light microscope mentioned in the problem: diaphragm, objective lens, eyepiece (ocular lens), and coarse adjustment knob.
The diaphragm controls the amount of light that passes through the specimen, but it does not focus the image.
The objective lens magnifies the specimen and contributes to image clarity, but it does not move the stage up and down.
The eyepiece (ocular lens) is used to view the magnified image, but it does not adjust the stage's position.
The coarse adjustment knob is responsible for moving the stage up and down to focus the image, making it the correct answer.
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