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What are point defects in crystals ? Des...

What are point defects in crystals ? Describe the Schottky defects in crystals.

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ICSE-SOLID STATE-EXERCISE (PART-II DESCRIPTIVE QUESTIONS) (SHORT ANSWER QUESTIONS)
  1. Explain the Schottky defects in stoichiometric crystals.

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  2. What are the consequences of Schottky and Frenkel defects?

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  3. What are point defects in crystals ? Describe the Schottky defects in ...

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  4. What do you understand by imperfections in ionic crystals? Name the ty...

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  5. What are the types of lattice imperfection found in crystals?

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  6. The radius of an octahedral void is 'r' and the radius of an atom is '...

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  7. If the radius of a tetrahedral void is 'r' and radius of atom in close...

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  8. What is radius ratio ? What is its significance in case of ionic cryst...

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  9. Briefly describe the radius ratio rules.

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  10. Explain briefly the superconductivity.

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  11. Explain each of the following with a suitable example: Paramagnetism .

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  12. Explain each of the following with a suitable example: Piezoelectric e...

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  13. Explain the nature of the crystal defect produced when NaCl is doped w...

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  14. Prove that the actual volume occupied by a bcc arrangement is 68% only...

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  15. How much is the empty space present in a primitive unit cell? Also cal...

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  16. Addition of CdCl2 to the crystals of AgCl will produce Schottky defect...

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  17. Distinguish between crystal lattice and unit cell.

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  18. Give reasons Silicon doped with phosphorus, gives an n-type semiconduc...

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  19. Give reasons The electrical conductivity of a metal decreases with ris...

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  20. Account for the Silicon is an insulator but silicon doped with phospho...

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