Q: If the diameter of the field of view under low power (10x) is 2 mm, what is the diameter under high power (40x)? Use the formula $$\text{Diameter}_{\text{high}} = \frac{\text{Diameter}_{\text{low}} \times \text{Magnification}_{\text{low}}}{\text{Magnification}_{\text{high}}}.$$

$$\frac{2 \times 10}{40} = 0.5 mm$$

Question 1

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

Accepted Answer

Diaphragm

Question 2

What is the total magnification when using a 10x ocular lens and a 40x objective lens on this microscope?

Accepted Answer

$$10 	imes 40 = 400$$

Question 3

Which component of the microscope is used to bring the specimen into sharp focus after using the coarse focus knob?

Accepted Answer

Fine focus knob

Question 4

If you switch from a low power objective (10x) to a high power objective (40x), what happens to the field of view?

Accepted Answer

It becomes smaller

Question 5

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

Accepted Answer

Nosepiece

Question 6

What is the function of the condenser in a light microscope?

Accepted Answer

It focuses light onto the specimen

Question 7

Which term describes a microscope's ability to remain nearly in focus when switching between objective lenses?

Accepted Answer

Parfocal

Question 8

If the diameter of the field of view under low power (10x) is 2 mm, what is the diameter under high power (40x)? Use the formula $$	ext{Diameter}_{	ext{high}} = \frac{	ext{Diameter}_{	ext{low}} 	imes 	ext{Magnification}_{	ext{low}}}{	ext{Magnification}_{	ext{high}}}.$$

Accepted Answer

$$\frac{2 	imes 10}{40} = 0.5 mm$$

Question 9

Which part of the microscope should you hold when carrying it to ensure safety?

Accepted Answer

Arm and base

Question 10

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

Accepted Answer

To hold the slide in place

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