Review

Question 1

What is the usual magnification of the eye piece (ocular) lens?

Answer 1

Ox

Commonly, the ocular lens has a magnification of 10x.

Question 2

To properly carry a microscope, you should have your hands on these two parts: _______ and _______.

Answer 2

Arm and base

Typically, the two parts are the arm and the base.

Question 3

Which part of the microscope has the objective lenses attached to it?

Answer 3

Nosepiece

This is known as the nosepiece.

Question 4

What are the magnifications for the low, medium, and high objective lenses?

Answer 4

4x, 10x, and 40x

These are standard magnifications for objective lenses.

Question 5

Which power (or magnification) should you ALWAYS begin with?

Answer 5

4 - Low

This is usually the low power objective (4x).

Question 6

Which adjustment knob would you use when the microscope is on high power?

Answer 6

Fine adjustment knob

This is the fine adjustment knob.

Question 7

The larger knob on the microscope is called the _______.

Answer 7

Course adjustment knob

This is known as the coarse adjustment knob.

Question 8

If you are viewing something using the medium power lens, what is the TOTAL magnification of the object?

Answer 8

100

The total magnification is typically 100x (10x ocular × 10x objective).

Question 9

If you are viewing something using the high-power lens, what is the TOTAL magnification of the object?

Answer 9

400

The total magnification is typically 400x (10x ocular × 40x objective).

Question 10

If you were having trouble viewing your specimen because the field of view is too dark, what could you do to brighten it up?

Answer 10

Turn up the light

Adjusting the light source can enhance visibility.