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A solid which is not transperent to visi...

A solid which is not transperent to visible light and whose conductivily increase with temperature is formed by

A

ionic bonding

B

covalent bonding

C

vander Wall's bonding

D

metallic bonding

Text Solution

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The correct Answer is:
B
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NARAYNA-SEMI CONDUCTOR DEVICES-C.U.Q
  1. The difference in the variation of resistance with temperature in a me...

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  2. The manifestation of band structure in solids is due to

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  3. A solid which is not transperent to visible light and whose conductivi...

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  4. To a germanium sample, traces of gallium are added as an impurity. The...

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  5. In semiconductors at a room temperature

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  6. Identify the property which is not characteristic for a semiconductor ...

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  7. Carbon , silicon and germanium have four valence electrons each . At r...

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  8. The relation between number of free electrons (n) in a semiconductor a...

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  9. An electrically neutral semiconductor has

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  10. There is no hole current in conductors because they have

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  11. In the insulators

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  12. In semiconductors the for bidden energy gap between V.B and C.B is of ...

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  13. The level formed due to impurity atom, in the for hidden energy gap, v...

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  14. The bond in semiconductors is

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  15. On increasing temperature, the conductivity of pure semiconductors

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  16. The mobility of free electrons is greater then that of free holes beca...

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  17. A semiconductor at 0 K behaves as

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  18. Carbon , silicon and germanium have four valence elcectrons each . The...

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  19. The valency of impurity element for making p-type semiconductors is

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  20. In n-type semiconductors the electron concentration is equal to

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