Question 1

Which part of the microscope is responsible for adjusting the amount of light that reaches the specimen?

Accepted Answer

Diaphragm

Question 2

If you are viewing a specimen under the 40x objective lens and the eyepiece lens is 10x, what is the total magnification?

Accepted Answer

$40 	imes 10 = 400$

Question 3

Which part of the microscope should you use first when focusing on a specimen under low power?

Accepted Answer

Coarse adjustment knob

Question 4

A student observes that the image under the microscope appears upside down and reversed. Which part of the microscope causes this effect?

Accepted Answer

Objective lens

Question 5

Which part of the microscope holds the objective lenses and allows you to change magnification?

Accepted Answer

Revolving nosepiece

Question 6

When carrying a microscope, which two parts should you hold for safety?

Accepted Answer

Arm and base

Question 7

If the field of view under low power is 4 mm, what will happen to the field of view when you switch to high power?

Accepted Answer

It will decrease

Question 8

Which part of the microscope moves the stage up and down for coarse focusing?

Accepted Answer

Coarse adjustment knob

Question 9

A student wants to increase the brightness of the specimen. Which part should they adjust?

Accepted Answer

Diaphragm

Question 10

Which part of the microscope supports the slide being viewed?

Accepted Answer

Stage

Question 11

If a specimen is not visible under high power, what is the best first step to troubleshoot?

Accepted Answer

Return to low power and refocus using the coarse adjustment knob

Question 12

Which part of the microscope is used for precise focusing after the specimen is found?

Accepted Answer

Fine adjustment knob

Question 13

What is the function of the stage clips on a microscope?

Accepted Answer

Hold the slide in place

Question 14

Which part of the microscope connects the base to the head and is used for carrying?

Accepted Answer

Arm

Question 15

If the eyepiece lens is $10	imes$ and the objective lens is $4	imes$, what is the total magnification?

Accepted Answer

$10 	imes 4 = 40$

The Compound Light Microscope: Structure and Function

Study Guide - Practice Questions