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MCQs

Total Questions : 500 | Page 2 of 50 pages
Question 11. Debye temperature of metals is
  1.    About 10 K
  2.    About 200 K
  3.    About 600 K
  4.    About 2 K
 Discuss Question
Answer: Option B. -> About 200 K
Question 12. Electric dipole moment is expressed in debye unit.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 13. Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 14. A leakage capacitor can be represented by a capacitance C and resistance R in parallel C.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 15. Many compounds also exhibit semiconducting properties.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 16. Spontaneous magnetisation is characteristic of ferromagnetic materials.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 17. Schrodinger wave equation is a
  1.    Linear equation
  2.    Differential equation
  3.    Partial differential equation
  4.    None of the above
 Discuss Question
Answer: Option C. -> Partial differential equation
Question 18. At room temperature the number of conducting electrons in an intrinsic semiconductor
  1.    Is almost equal to the number of valence electrons
  2.    Is about half the number of valence electrons
  3.    Is small as compared to the number of valence electrons
  4.    Is a very small fraction of the number of valence electrons
 Discuss Question
Answer: Option D. -> Is a very small fraction of the number of valence electrons
Question 19. In solid insulator materials having only one kind of atom, the types of polarization which exist are
  1.    Electronic only
  2.    Electronic and ionic
  3.    Electronic, ionic and permanent
 Discuss Question
Answer: Option A. -> Electronic only
Question 20. A vacant electronic state moves in the same direction as would a positive charge carrier.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True

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