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the edge length of the unit cells in ...

the edge length of the unit cells in terms of the radius of sphere constituting fcc ,bcc and simple cubic unit cells are respectively ………. .

A

`2sqrt(2r),(4r)/(sqrt3),2r`

B

`(4r)/(sqrt3),2sqrt(2r),2r`

C

`2r,2sqrt(2r),(4r)/(sqrt3)`

D

`2r,(4r)/(sqrt3),2sqrt(2r)`

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The correct Answer is:
A
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DINESH PUBLICATION-SOLID STATE-MULTIPLE CHOCIE QUESTION (TYPE-I)
  1. which of the follwing defects is also known as dislocation defect ...

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  2. in the cubic packing , the unit cell has ………. .

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  3. the edge length of the unit cells in terms of the radius of spher...

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  4. which of the following represents correct order of conductivity ...

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  5. Which of the following is not true about the voids formed in 3 dimensi...

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  6. the value of magnetic moment is zero in the case of antiferromag...

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  7. Which of the following statements are not true ?

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  8. Which of the following statements are true about metals ?

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  9. under the influence of electric field , which of the following st...

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  10. Which of the following statements are ture about semi-conductors ?

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  11. An excess of potassium ions makes KCL crystals appear violet or l...

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  12. the number of tetrahedral voids per unit cell in NaCl crystal is ...

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  13. Amorphous solids can also be callled ………….. .

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  14. A perfect crystal of silicon (fig) is doped with some elements a...

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  15. Which of the following statements are correct ?

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  16. Which of the following features are not shown by quartz glass ?

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  17. Which of the following cannot be regarded as molecular solid ?

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  18. In which of the following arrangements, Octahedral voids are forme...

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  19. Frenkel defect is also known as ……… .

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  20. Which of the following defects decrease the density ?

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