Nano Structured Semiconductor Materials MCQ

Test your knowledge with important Nano Structured Semiconductor Materials MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Nano Structured Semiconductor Materials MCQs on Bissoy. Bissoy App

• Which of the following is not an application of semiconductor nano-crystals?
  ক

  Food colouring

  খ

  LEDs

  গ

  Ultrasensitive detection

  ঘ

  Cellular imaging
• What are phonons?
  ক

  Sub-atomic particles

  খ

  Quasi-particle

  গ

  Quantum of electromagnetic radiation

  ঘ

  Atoms and molecules
• Which of the following statement is correct regarding p-n junction?
  ক

  At equilibrium, there is no movement of electrons and holes across the p-n junction

  খ

  On applying voltage, only electrons move across the junction

  গ

  Bias condition for current injection is known as reverse bias

  ঘ

  On applying voltage, only holes move across the junction
• Which of the following is not a phonon?
  ক

  Optical

  খ

  Longitudinal

  গ

  Acoustic

  ঘ

  Leptons
• Where do the impurity states get formed in an n-type and p-type doped semiconductor?
  ক

  Below the bottom of the conduction band and just above the top of the valence band respectively

  খ

  Below the top of the valence band and just above the bottom of the conduction band respectively

  গ

  Just above the bottom of the conduction band and just below the top of the valence band respectively

  ঘ

  Just above the top of the valence band and just below the bottom of the conduction band respectively
• The lifetime of fluorescence is longer than phosphorescence.
  ক

  True

  খ

  False
• How does Silicon behave at 0K?
  ক

  Conductor

  খ

  Super conductor

  গ

  Semiconductor

  ঘ

  Insulator
• Luminescence is created when electrons possessing high amount of energy strike against a semiconductor material–This is the principal of which kind of luminescence?
  ক

  Cathodoluminescence

  খ

  Photoluminescence

  গ

  Electroluminescence

  ঘ

  Thermoluminescence
• What is an exciton in a semiconductor?
  ক

  Electron-Electron pair

  খ

  Electron-Hole pair

  গ

  Electron-Phonon pair

  ঘ

  Hole-Hole pair