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The resistance of Nb(3)Ge becomes almos...

The resistance of `Nb_(3)`Ge becomes almost zero at:

A

23 K

B

30K

C

40K

D

25K

Text Solution

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The correct Answer is:
A
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VMC MODULES ENGLISH-THE SOLID STATE-EFFICIENT
  1. F-centre defect is noticed in:

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  2. Extremely pure samples of Ge and Si are non-conductors, but their cond...

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  3. The resistance of Nb(3)Ge becomes almost zero at:

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  4. Statement-1: High thermal conductivity of metals is due to presence of...

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  5. Which of these is pyroelectric?

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  6. The substance which possesses zero resistance at 105 K:

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  7. The strcture of MgO is similar to NaCl. What is the co- ordination ...

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  8. An element (atomic mass = 100 g//mol) having bcc structure has unit ce...

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  9. Which of the following has the highest lattice energy ?

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  10. An element with molecular weight 200 gm/mole crystallizes in a s...

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  11. CsCl has bc c arrangement and its unit cell edge length is 400 pm. Cal...

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  12. In the face centered cubic unit cell, the radius of atoms in terms of ...

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  13. The number of atoms present in a hexagonal close-packed unit cell is:

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  14. In a solid between A and B atoms of A are arranged in ccp array and at...

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  15. The arrangement ofCI^(-) ions in CsCI structure is

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  16. Which of the following solids is the structure of CsCl crystal ?

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  17. Close packing is maximum in the crystal which is

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  18. The radius of Ag^(+) ion is 126 pm and that of I^(-)ion is 216 pm. The...

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  19. In hexagonal primitive unit cell, the Corner is shared by:

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  20. The greater the value of r(+)//r(-).

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