1. What is an atom ?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:1. What is an atom 7
2. Explain briefly the followings:
(i) Unit cell
(ii) Space lattice
(iv) Crystallographic planes.
(ii) Lattice parameters
3. Discuss briefly the following structures for metallic elements:
() Body centred cubic (BCC)
(ii) Face centred cubic (FCC)
(iii) Hexagon close-packed (HCP)
4. What are Miller indices ? What is procedure for finding Miller indices?
5. Discuss important features of Miller indices.
6. How are crystallographic defect classified ?
7. Explain briefly the following point defects :
(1) Vacancy
(ii) Schottky imperfections
(iv) Frenkel defect.
(ii) Interstitialcy
8. Describe briefly the following line defects (disilocations) :
(1) Edge dislocations.
(ii) Screw dislocations.
9. What is Berger's vector ?
10. Give the comparison between edge disloçation and screw dislocations.
11. Discuss briefly the following :
(1) Surface defects.
(ii) Volume defects or three dimensional defects
12. Explain briefly the following :
() Theory of dislocations.
(i) Role and significance of dislocation.
apter three MECHANICAL PROPERTIES
Cn otol ore:.
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