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On doping Ge with a little of In or Ga o...

On doping `Ge` with a little of `In or Ga` one gets

A

n-type semi - conductor

B

n-type semi - conductor

C

insulator

D

rectifer

Text Solution

Verified by Experts

The correct Answer is:
B
Ge is a group 14 element, while in is a group 13 element. On doping certain holes will be created to form p-type semi-conductors
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DINESH PUBLICATION-SOLID STATE-multiple choice
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  2. On doping Ge with a little of In or Ga one gets

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  3. When electrons are trapped into the crystalline anion vacancy the def...

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  4. If we mix a pentavalent impurity in the crystal lattice of germinium t...

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  5. Which of the following is a ferroelectric compound?

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  6. The intermetallic compounds LiAg crystallises in cubic lattice in whic...

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  7. In the crystals of which of the following ionic compounds would you ex...

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  8. Schottky defect to crystals is observed when

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  9. A compound formed by elements A and B crystallises in a cubic structur...

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  10. When molten zinc is cooled to solid state, it assumes hcp structure. T...

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  11. What is the co-ordination number of sodium in Na(2)O ?

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  12. A compound formed by elements X and Y crystallises in a cubic structur...

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  13. The crystal system of a compound with unit cell dimensions a=0.387,b=0...

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  14. In a face centred cubic lattice unit cell is shared equally by how man...

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  15. If 'Z' is the number of atoms in the unit cell that represents the cl...

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  16. The appearance of colour in solid alkali metal halides is generally du...

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  17. CsBr crystallises in a body- centred cubic lattice. The unit cell leng...

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  18. The Ca^(2+) and F^(-) ions arc located in CaF(2) crystal respectively ...

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  19. A particular solid is very hard and has a very high melting point.In s...

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  20. If NaCl is doped with 10^(-4)mol%of SrCl(2) the concentration of cati...

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