Biology Lab 3 Parts of compound binocular light microscope

Question 1

head

Answer 1

supports the 2 sets of magnifying lenses

Question 1

ocular

Answer 1

lens in the eyepiece which usually has a magnification of 10X

Question 2

interpupillary distance

Answer 2

distance between the eyepieces

Question 3

pointer

Answer 3

in the eyepiece to point to an object in the field of view

Question 4

field of view

Answer 4

circle or light that you can see in the microscope

Question 5

objectives

Answer 5

lenses on revolving nosepiece

Question 6

scanning lens

Answer 6

shortest; magnifying power of 4X-5X

Question 7

intermediate lens

Answer 7

magnifying power of 10X

Question 8

high-power lens

Answer 8

magnifying power of 40X

Question 9

oil immersion objective

Answer 9

100X; not used in this lab; should never be used without oil

Question 10

arm

Answer 10

supports the stage and condesner lens

Question 11

condenser lens

Answer 11

used to focus the light from the lamp through the specimen to be viewed

Question 12

adjustment knob

Answer 12

height of condenser can be adjusted using this piece

Question 13

iris diaphragm

Answer 13

controls the width of the circle of light and the amount of light that passes through the specimen

Question 14

the stage

Answer 14

supports the specimen to be viewed

Question 15

stage adjustment knobs

Answer 15

mechanical stage can be moved right and left and back and forth by these parts

Question 16

coarse and fine focus adjustment knobs

Answer 16

distance between the stage and the objective can be adjusted with these knobs

Question 17

base

Answer 17

acts as the stand and also houses the lamp

Question 18

light intensity knob

Answer 18

intensity of the light that passes through the species can be adjusted through this knob