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ESE 2021 Technical Quiz || crystal structures and defects

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Question 1

For simple cubic crystal structure, packing efficiency is:

Question 2

In Face-Centred Cubic structure (FCC), what number of atoms is present in each unit cell?

Question 3

Schottky defect is an example of

Question 4

In a crystal lattice, the defect created by movement of ion from its original position to interstitial position is:

Question 5

For BCC, effective number of atoms per unit are:
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Jun 26ESE & GATE EE