In this lecture Scanning Electron Microscope (SEM) discuss in detail with its Principle & Working.
At the end of lecture MCQ based on SEM also explained.
Q.1 Scanning Electron microscope detect
A. Primary Electron
B. Secondary Electron
C. Both
D. None
Q.2 In Scanning Electron Microscope which type of Cathode used
A. Thermionic
B. Zirconium oxide
C. Lanthanum hexaboride
D. All
Q.3 In Scanning Electron Microscope, Which parts we found
A. Raster scan generator
B. Secondary Electron Detector
C. Electromagnetic deflection
D. All
Q.4 Tick the Disadvantage of Scanning Electron Microscope
A. Very Costly
B. Required skilled staff
C. Sample Preparation is a tedious task
D. All
Q.5 Which of the following is Application of Scanning Electron Microscope
A. It is used for Surface analysis of metal
B. It is used for semiconductor inspection
C. Used to identify drug crystalline structure
D. All
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