Flashcards Microscope Quiz | Quizlet

the lens you look through often with 10x magnification

eyepiece (ocular lens)

used to bring a specimen into general focus

Coarse Adjustment

used for precise focus adjustments

Fine Adjustment

surface or viewing a slide

the stage

flexible clips that hold a slide in place

the stage clips

allows light to pass through the stage, and illuminates the specimen

the stage opening

lenses attached to the nosepiece that, with the ocular lends magnifies a specimen

the objectives

Controls the amount of light focused on a specimen

the diaphragm

holds the objective lens and rotates to change the magnification used for viewing

the revolving nosepiece

Location of the light source

Illuminator

How do you determine the total magnification of a microscope?

you multiply the ocular lenses power and the objective lenses. [10 x (4,10,40)]

Scanning Power (reg. and total)

4x

40x

Low Power (reg. and total)

10x

100x

High Power (reg. and total)

40x

400x

Which objective should always be used first to locate an object on a slide? Why?

The 4x objective should always be used to locate an object on a slide because you can locate the whole specimen

Which adjustment is used to sharpen the focus?

Fine focus knob is what you use to sharpen the focus

How should you carry the microscope?

You should carry the microscope by the arm

Which adjustment is used to locate an object under LP?

The fine adjustment is used to locate an object under LP

Why should you never raise the stage toward the objective with the coarse adjustment while looking through the ocular?

You can break/crush the specimen, slide, or lens

What should be used to clean a dirty lens? Why shouldn't you use Kleenex or paper towels?

you should use lens paper. Kleenex or paper towels cna scratch or damage the lens