microscope quiz

When working with high-power objective lenses, it is important that you

• use the diaphragm

• use the coarse adjustment

• use the fine adjustment

• use the ocular lens

Working distance is the amount of space you have between the top of the

coverslip and the ____

• objective lens

• eyepiece

• stage

• lamp

. As magnification _______ , field diameter ________ .

• increases; decreases

• increases; increases

• increases; stays the same

• decreases; stays the same

• decreases; decreases

Suppose you are working with a microscope using a 10X ocular lens and a 4X objective lens. Using a ruler, you measure the field diameter at 4.6 mm.

How many micrometers (µm) is this?

• 4,600 µm

• 460 µm

• 0.46 µm

• 46,000 µm

4X = __mm

10X = __mm

40X = __mm

very useful for examining thick specimens, produce 3D, upright images

• dissecting/stereo microscope

• compound light microscope

one ocular lens, multiple objective lenses, generally magnify from 40 X to 1000 X, rely on light passing through thin specimen

• dissecting/stereo microscope

• compound light microscope

objective lens