Module 1 Part 1

The lens that is within the eyepiece of the light microscope is called the:

• scanning

• low power

• high power

• ocular

The wheel under the stage that adjusts the amount of light is called the:

• coarse knob

• stage clip

• body tube

• diaphragm

To focus a specimen, it is best to start with which objective:

• high power

• low power

• scanning

• ocular

When using the high power objective, you should not adjust the:

• coarse focus

• fine focus

• diaphragm

• stage clips

The scanning, low, and high power objectives are mounted on the:

• revolving nosepiece

• stage

• body tube

• eyepiece

A microscope has a 4x ocular lens and a 10x objective, what is this microscope's total magnification?

• 4x

• 14x

• 40x

• 400x

Which part of the compound microscope helps in gathering and focusing light rays on the specimen to be viewed?

• Eyepiece lens

• Objective lens

• Condenser lens

• Magnifying lens

What is the minimum distance for the eye to focus any object?

• 11 cm

• 25 cm

• 32 cm

• 4 2 cm

Resolving power of a microscope is a function of ____________

• Wavelength of light used

• Numerical aperture of lens system

• Refractive index

• Wavelength of light used and numerical aperture of lens system

The greatest resolution in light microscopy can be obtained with ___________

• Longest wavelength of visible light used

• An objective with minimum numerical aperture

• Shortest wavelength of visible light used

• Shortest wavelength of visible light used and an objective with the maximum numerical aperture