Names & Uses of Microscopes

Question 1

what is the function of the stage?

Answer 1

supports the microscope slide; has a central opening that allows light to pass through the slide

Question 2

what is the function of the clips?

Answer 2

hold the slide in position on the stage

Question 3

what’s the funtion of the diaphragm?

Answer 3

controls the amount of light that reachers the object being viewed.

Question 4

what is the function of the objective lenses?

Answer 4

magnify the object; has three different magnifications: low power (4x), medium power (10x), and high power (40x).

Question 5

what is the function of the revolving nosepiece?

Answer 5

holds the objective lenses; rotates allowing the lenses to be changed while viewing an object

Question 6

what is the funtion of the body tube?

Answer 6

contains the eyepiece (ocular lens); supports the objective lenses

Question 7

what is the funtion of the ocular lens?

Answer 7

the part of the microscope that you look through to view the object; magnifies the image of the object, usually by 10x

Question 8

what is the funtion of the coarse adjustment knob?

Answer 8

moves the body tube up or down to get the object into focus; is used only with the lower power object lens

Question 9

what is the function of the fine adjustment knob?

Answer 9

moves the body tube to get the object into sharp focus; is used with the medium-power and high-power magnification.

(used only after the object has been located, centered, and focused under the low-power lens using the coarse adjustment knob)

Question 10

what is the funtion of the light source?

Answer 10

an electrcal light or mirror thhat can be angled to direct light through the object that’s being viewed.