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Which of the following statements is not...

Which of the following statements is not ture ?

A

Paramagnetic substances are weakly attracted by magnetic field

B

Ferromagnetic substances cannot be magnetised permanently

C

The domains in antiferromagnetic substances are oppositely oriented with respect to each other

D

Pairing of electrons cancels their magnetic moment in the diamagnetic substances.

Text Solution

Verified by Experts

The correct Answer is:
B
Ferromagnetic substances can be magnetised permanently.
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DINESH PUBLICATION-SOLID STATE-MULTIPLE CHOCIE QUESTION (TYPE-I)
  1. which kind of defects are introduced by doping ?

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  2. silicon doped with electron rich impurity forms ………. .

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  3. Which of the following statements is not ture ?

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  4. which of the following is not true about the ionic solids ?

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  5. A ferromagnetic substance becomes a permanent magnet when it is placed...

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  6. the correct order of the packing effeciency in different types o...

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  7. which of the follwing defects is also known as dislocation defect ...

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

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

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

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

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

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  13. Which of the following statements are not true ?

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

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

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

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

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

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

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

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