This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 17 (12 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If F(E) =1, then A) 0% probability that the electrons to occupy energy level below Fermi level. B) 50% probability that the electrons to occupy energy level below Fermi level. C) 75% probability that the electrons to occupy energy level below Fermi level. D) 100% probability that the electrons to occupy energy level below Fermi level. Show Answer Correct Answer: D) 100% probability that the electrons to occupy energy level below Fermi level. 2. Convert alternating current (AC) to direct current (DC) A) Transistor. B) Diode. C) IC. D) None of the above. Show Answer Correct Answer: B) Diode. 3. Example for direct band gap semiconductors are A) GaAs. B) Ge. C) Si. D) AlSb. Show Answer Correct Answer: A) GaAs. 4. An LED is what? A) An input device. B) An output device. C) A processing device. D) None of the above. Show Answer Correct Answer: B) An output device. 5. A semiconductor has generally ..... valence electrons. A) 2. B) 3. C) 6. D) 4. Show Answer Correct Answer: D) 4. 6. To start the stimulated emissions in direct bandgap semiconductors is required A) Low current density. B) Large divergence. C) Coherence. D) Large current density. Show Answer Correct Answer: D) Large current density. 7. Conductor is A) Good carrier of electricity. B) Poor carrier of electricity. C) All the above. D) None of the above. Show Answer Correct Answer: A) Good carrier of electricity. 8. Heat sinks can be used to dissipate heat produced by the forward conduction power losses. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 9. Electrons and holes are equal in magnitude but opposite in polarity A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 10. Intrinsic semiconductors are of A) 4 types. B) 3 types. C) 2 types. D) 1 type. Show Answer Correct Answer: C) 2 types. 11. At zero kelvin, how do semiconductors behave? A) As Superconductors. B) As Conductors. C) As Insulators. D) As Semiconductors. Show Answer Correct Answer: C) As Insulators. 12. What are the applications of photonics in communication? A) Quantum computing applications. B) Applications of photonics in communication include fiber optic communication, telecommunications, and data transmission in data centers. C) Medical imaging techniques. D) Solar energy conversion. Show Answer Correct Answer: B) Applications of photonics in communication include fiber optic communication, telecommunications, and data transmission in data centers. ← PreviousRelated QuizzesClass 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 1Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 2Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 3Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 4Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 5Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 6Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 7Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 8Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 9Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books