MICROSCOPE Flashcards
uses a beam of accelerated electrons as a source of illumination
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
B. ELECTRON MICROSCOPE
**uses electron illumination and looks at the surface of *bulk objects by scanning the surface with a fine electron beam. **
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
C. Scanning Electron Microscope
limited by diffraction to about 200 nm resolution and useful magnifications below 2000 x
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
A. Light microscopes
The image is seen in 3-D
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
C. Scanning Electron Microscope
same principle as an optical microscope but uses *electrons *instead of light and *electromagnets *instead of glass lenses
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
D. TEM
o giving a two-dimensional view
o achieve better than 50 nm resolution and magnifications of up to about 10,000,000
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
D. TEM
coated in gold and the electrons bounce off
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
C. Scanning Electron Microscope
up to 100,000 times shorter than that of visible light photons
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
B. ELECTRON MICROSCOPE
** pictures are in black and white.**
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
C. Scanning Electron Microscope
a stream of electrons is used to illuminate the specimen
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
B. ELECTRON MICROSCOPE
Environmental Scanning Electron Microscope (ESEM)
A. Light microscopes
B. ELECTRON MICROSCOPE
C. Scanning Electron Microscope
D. TEM
C. Scanning Electron Microscope
produce images of sufficient quality and resolution with the samples being wet or contained in low vacuum or gas
A. Light microscopes
B. ELECTRON MICROSCOPE
C. environmental Scanning Electron Microscope
D. TEM
C. Environmental Scanning Electron Microscope