Functional Materials MCQ

Test your knowledge with important Functional Materials MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Functional Materials MCQs at Bissoy

• The amplification factor for transistor when used as an amplifier will be ___________
  ক

  25

  খ

  50

  গ

  75

  ঘ

  100
• Which of the following is not an application of a transistor?
  ক

  Tunnel diodes

  খ

  Thermistors

  গ

  Amplifiers

  ঘ

  None of the mentioned
• The correct sequence for the procedure adopted for making a pure elemental semiconductor consist of ___________
  ক

  Preparation of ultrapure Si or Ge >> Doping >> Preparation of single crystals of Si or Ge

  খ

  Doping >> Preparation of ultrapure Si or Ge >> Preparation of single crystals of Si or Ge

  গ

  Preparation of ultrapure Si or Ge >> Preparation of single crystals of Si or Ge >> Doping

  ঘ

  Preparation of single crystals of Si or Ge >> Preparation of ultrapure Si or Ge >> Doping
• Optical fibre can be safely used for signal transmission near the nuclear installation because ___________
  ক

  There is no leakage of signals

  খ

  Plastic cladded silica fibres are resistant to nuclear radiations

  গ

  Plastic cladded silica fibres are not resistant to nuclear radiations

  ঘ

  There is no electromagnetic interference
• What is the principle on which an optical fibre works?
  ক

  Total internal reflection

  খ

  Farraday’s law of induction

  গ

  Doppler Effect

  ঘ

  Hooke’s law
• The dielectric material that shows spontaneous and reversible dielectric polarisation are ___________
  ক

  Piezoelectrics

  খ

  Pyroelectrics

  গ

  Ferroelectrics

  ঘ

  None of the mentioned
• Identify the class of the superconductor to which TiO and NbO belong.
  ক

  Simple compounds

  খ

  Nonstoichiometric crystals having defects

  গ

  Charge-transfer compounds

  ঘ

  Molecular crystals
• The critical temperature for the cuprate La2CuO4 is ___________
  ক

  40 K

  খ

  90 K

  গ

  125 K

  ঘ

  35 K
• The materials which offer no resistance to the passage of electricity are ___________
  ক

  Superconductors

  খ

  Semiconductors

  গ

  Optical fibre

  ঘ

  Smart material