Exam One Practice

The total magnification of a compound light microscope is:

• The magnification of the objective lens only

• The magnification of the ocular lens only

• The sum of the objective and ocular magnifications

• The product of the objective and ocular magnifications

What does resolving power of a microscope refer to?

• The maximum light intensity

• The ability to distinguish two closely spaced objects as separate

• The maximum magnification possible

• The clarity of the ocular lens

Numerical Aperture (NA) of a microscope objective is:

• A measure of magnification power

• An index of resolving power and light-gathering ability

• The distance between object and lens

• The type of light source used

Which part of the microscope directs and focuses light onto the specimen?

• Ocular lens

• Condenser

• Stage

• Objective

The iris diaphragm of a microscope is used to:

• Change magnification

• Adjust the amount of light entering the field of view

• Hold the specimen slide

• Adjust fine focus

Oil-immersion objectives are primarily used for:

• Low-power viewing

• High-resolution viewing of very small specimens

• Increasing field of view

• Digital imaging

In brightfield microscopy, objects appear:

• Dark on a bright background

• Bright on a dark background

• Fluorescent under UV light

• Three-dimensional

Which microscope provides the highest magnification and resolution?

• Brightfield

• Darkfield

• Electron microscope

• Phase-contrast microscope

Which microscope is most useful for identifying crystals in synovial fluid?

• Fluorescence microscope

• Polarized microscope

• Phase-contrast microscope

• Darkfield microscope

Digital microscopy systems are capable of:

• Preclassifying blood cells using artificial neural networks

• Storing up to 20,000 slides in a database

• Remote review of smears

• All of the above