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As you increase the total magnification of the specimen, the working distance _________.


A) increases
B) decreases
C) remains the same

D) A) and C)
E) None of the above

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The depth of field ________.


A) depends on the tissue being studied
B) depends on the thickness of the slide
C) is the depth of the slide that is clearly in focus

D) A) and B)
E) None of the above

Correct Answer

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If a circular object seen in your low- power field (diameter 1 mm) occupies about 1/4 of the diameter of the field, the object's diameter is about________ .


A) 2.5 µm
B) 0.25 µm
C) 250 µm
D) 25 µm

E) A) and C)
F) None of the above

Correct Answer

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To transport a microscope, hold it _________ .


A) horizontally, with one hand supporting the objective lenses
B) cradled in both arms
C) upright, with one hand on its arm and the other hand supporting its base
D) close to your body with one arm and cover the top of it with your other arm

E) C) and D)
F) B) and C)

Correct Answer

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The ability to discriminate two close objects as separate is called ________.


A) parfocal
B) working distance
C) virtual image
D) resolution (or resolving power)

E) All of the above
F) A) and B)

Correct Answer

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