L3 - Microscopes Flashcards
What types of microscopes are there?
Optical compound microscope (light)
Transmission electron microscope (TEM)
Scanning electron microscope
What is a photomicrograph?
A photograph taken through a microscope
What is magnification?
How much bigger the image is than the real object
What is resolution?
The ability to distinguish between 2 objects that are close together
What is the wavelength of light?
450 - 600 nm
What is the wavelength of electrons?
0.005 nm
What is the maximum magnification of a light microscope?
X 15,000
What is the maximum magnification of a scanning electron microscope?
X 100,000
What is the maximum magnification of a transmission electron microscope?
X 500,000
What is the resolution of a light microscope?
200 nm
What is the resolution of a scanning electron microscope?
Less than 1nm
What is the resolution of a transmission electron microscope?
0.5 nm
