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microscopes
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Cards (19)
What is the definition of a
microscope
?
A microscope is an
instrument
designed to make very small objects
visible
to the human eye.
What is the main purpose of a
microscope
?
The main purpose of a microscope is to
magnify
objects that are too small to be seen with the
naked eye
.
What does
magnification
refer to in the context of microscopes?
Magnification refers to the enlargement of the appearance of
tiny
objects.
Why are
microscopes
essential tools in biology, medicine, and materials science?
Microscopes are essential because they allow us to study the structure and behavior of
microscopic
organisms and materials.
What is an example of a
microscopic
organism that can be observed with a
microscope
?
Bacteria
are an example of microscopic organisms that can be observed with a microscope.
What are the main types of
microscopes
?
The main types of microscopes are light microscopes,
electron microscopes
, and
scanning probe microscopes
.
What type of
microscope
uses
visible light
and
lenses
?
Light microscopes use visible light and lenses.
What is the advantage of
electron microscopes
over
light microscopes
?
Electron microscopes provide much higher magnification and
resolution
than light microscopes.
What are the two types of
electron microscopes
mentioned?
The two types of electron microscopes are
Transmission Electron Microscopes
(TEM) and
Scanning Electron Microscopes
(SEM).
What do
Scanning Probe Microscopes
use to scan the specimen?
Scanning Probe Microscopes use a physical probe to scan the specimen.
What is the function of the
eyepiece
in a
compound light microscope
?
The eyepiece is the lens you look through, typically providing
10x
magnification.
How many
objective lenses
are typically found on a
compound light microscope
?
Compound light microscopes typically have multiple objective lenses, usually
4x
,
10x
,
40x
, and
100x
.
What is the purpose of the
stage
in a
compound light microscope
?
The stage is the platform where you place your
specimen
slide.
What is the role of the
diaphragm
in a
compound light microscope
?
The diaphragm controls the amount of light reaching the specimen.
Why is it important to start with the lowest power
objective lens
when using a
microscope
?
Starting with the lowest power objective lens makes it easier to locate and focus on the
specimen
initially.
What should you do after positioning your slide on the stage of a
compound microscope
?
After positioning your slide, you should adjust the light source and
diaphragm
to properly illuminate the
specimen
.
What is the relationship between
magnification
and
resolution
in microscopy?
Higher magnification doesn't always mean better image quality; resolution is more important for seeing detail.
How is total magnification calculated in
microscopy
?
Total magnification is calculated by multiplying
eyepiece magnification
by
objective lens magnification
.
What happens to the
image quality
if you increase the magnification of a light
microscope
beyond its
resolution limit
?
The image would become
larger but blurrier
if magnification exceeds the resolution limit.