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What is impurity or extrinsic semiconduc...

What is impurity or extrinsic semiconductor? Give an example.

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CHHAYA PUBLICATION-SOLID STATE-EXERCISE
  1. What is lattice point?

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  2. What do you understand by unit cell of a crystal?

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  3. What is impurity or extrinsic semiconductor? Give an example.

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  4. What is the coordination number of a particle in an hcp or a ccp struc...

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  5. What is a ferromagnetic substance? Give an example.

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  6. What is a ferrimagnetic substance? Give an example.

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  7. The constiuent particle in solid H(2) and the attractive forces holdi...

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  8. Silicon is a solid.

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  9. Packing efficiency of body-centred cubic unit cell is and that of fac...

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  10. If equal number of cations and anions are missing from an ionic crysta...

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  11. Number of Bravais lattices in cubic crystal system is .

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  12. substance can be converted into a permanent magnetic substance.

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  13. If pure Si is doped with a trace amount of As, semiconductor is forme...

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  14. A unit cell having a=bnecandalpha=beta=gamma=90^(@) belongs to system...

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  15. The unit cell in a three-dimensional close-packed structure with sequa...

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  16. In the crystal lattice of non-stoichiometric NaCl, the anion vacancies...

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  17. Number of particles in the unit cells of ccp and hcp structures are a...

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  18. Amount of empty space in ccp structure is %.

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  19. Crystals are classified into crystal system.

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  20. Number of Bravais lattices are .

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