Microscopes

Front

What is a compound light microscope?

Back

A compound light microscope is an optical instrument that uses multiple lenses to magnify small objects, allowing for detailed observation of specimens.

Front

What is the function of the eyepiece in a microscope?

Back

The eyepiece is the part of the microscope that you look through to view the magnified image of the specimen.

Front

What does the term 'total magnification' mean?

Back

Total magnification refers to the overall enlargement of an image, calculated by multiplying the magnification of the ocular lens by the magnification of the objective lens.

Front

What is the purpose of the coarse adjustment knob?

Back

The coarse adjustment knob is used to move the stage up and down to bring the specimen into general focus, but should not be used with high power objectives.

Front

What is the scanning objective lens on a microscope?

Back

The scanning objective lens is the lens with the lowest magnification, typically 4X, used for locating the specimen.

Front

What is the fine adjustment knob used for?

Back

The fine adjustment knob is used for making small adjustments to focus the image more clearly after using the coarse adjustment knob.

Front

What is the diaphragm in a microscope?

Back

The diaphragm is a component that controls the amount of light reaching the specimen, enhancing visibility.

Front

What is the revolving nosepiece?

Back

The revolving nosepiece is the part of the microscope that holds the objective lenses and allows the user to switch between different magnifications.

Front

What are objective lenses?

Back

Objective lenses are the lenses closest to the specimen that provide different levels of magnification, such as 10X, 40X, and 100X.

Front

Why should you not use the coarse adjustment knob with high power objectives?

Back

Using the coarse adjustment knob with high power objectives can cause the lens to crash into the slide, potentially breaking the slide or damaging the lens.