Lab 8 - Parts of a microscope

Question 1

ocular lens

Answer 1

lens throughout which the user views the slide

Question 2

light source

Answer 2

a bulb in the base of the microscope

Question 3

light intensity adjustment

Answer 3

adjusts the bulb intensity

Question 4

condenser

Answer 4

concentrates the beam of light onto the specimen

Question 5

iris diaphragm

Answer 5

adjusts the amount of light that passes through the condenser

Question 6

stage

Answer 6

flat platform on which the slide is placed

Question 7

mechanical stage

Answer 7

clips on the stage to hold the slide in place (adjusted with the mechanical stage knobs)

Question 8

nose piece

Answer 8

a revolving mount that holds the objective lenses

Question 9

objectives

Answer 9

provide magnification of the specimen

Question 10

4x objective

Answer 10

scanning objective

Question 11

10x objective

Answer 11

low-power objective

Question 12

40x objective

Answer 12

high-power of high-dry objective

Question 13

coarse adjustment knob

Answer 13

large diameter knob used to bring the specimen into focus (only used with 4x objective)

Question 14

fine adjustment knob

Answer 14

the smaller the diameter knob used to made the small adjustments in focusing