This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Physics (Part Ii) Chapter 14 Semiconductor Electronics Materials Quiz 10 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. During formation of p-n junction A) An electron diffuses from n to p side. B) A hole diffuses from p to n side. C) A hole diffuses from n to p side. D) An electron diffuses from p to n side. Show Answer Correct Answer: A) An electron diffuses from n to p side. 2. Which of the following acts as a donor impurity in doping process? A) Arsenic. B) Indium. C) Gallium. D) Boron. Show Answer Correct Answer: A) Arsenic. 3. What type of devices emerged from the development of solid-state electronics? A) Only diodes. B) Only integrated circuits. C) Only vacuum tubes. D) Diodes, transistors, and integrated circuits. Show Answer Correct Answer: D) Diodes, transistors, and integrated circuits. 4. In which of the following semiconductor, the concentration of the holes and electrons is equal? A) Extrinsic. B) Compound. C) Intrinsic. D) None. Show Answer Correct Answer: C) Intrinsic. 5. What is the purpose of a Zener diode? A) To store energy. B) To allow current to flow in both directions. C) To provide surge protection. D) To increase current flow. Show Answer Correct Answer: C) To provide surge protection. 6. What is the resistivity of copper compared to mica? A) Copper has higher resistivity. B) Resistivity is not mentioned in the text. C) Mica has higher resistivity. D) Copper and mica have the same resistivity. Show Answer Correct Answer: C) Mica has higher resistivity. 7. What happens to the conductivity of a semiconductor when it is doped with a pentavalent impurity? A) The conductivity of the semiconductor increases. B) The conductivity of the semiconductor decreases. C) The conductivity of the semiconductor becomes negative. D) The conductivity of the semiconductor remains the same. Show Answer Correct Answer: A) The conductivity of the semiconductor increases. 8. Which of the following statements is true regarding semiconductor devices? A) They are larger than vacuum tubes. B) They are less reliable than vacuum tubes. C) They do not require external heating. D) They operate at high voltages. Show Answer Correct Answer: C) They do not require external heating. 9. What is a semiconductor? A) A non-metal with strong covalent bonds that oppose the flow of current. B) A person who directs the performance of an orchestra or choir. C) A substance with an electrical conductivity that can act as either a conductor or an insulator depending on the circumstance. D) None of the above. Show Answer Correct Answer: C) A substance with an electrical conductivity that can act as either a conductor or an insulator depending on the circumstance. 10. When the doping level of a crystal diode is increased, what happen to the breakdown voltage? A) Remain same. B) Decreased. C) Increased. D) None of the answer. Show Answer Correct Answer: B) Decreased. 11. Which among these is NOT a semiconductor A) Germanium. B) Silicon. C) Gallium Arsenide. D) Titanium. Show Answer Correct Answer: D) Titanium. 12. Free electron theory has been developed in ..... main stages A) 1. B) 2. C) 3. D) 5. Show Answer Correct Answer: C) 3. 13. Creation of holes without generating electrons and can be used to control the concentration of holes in semiconductor is the doping process in ..... A) N-type semiconductor. B) P-type semiconductor. C) Intrinsic semiconductor. D) Insulator. Show Answer Correct Answer: B) P-type semiconductor. 14. What is the fundamental study of the properties and behaviors of semiconductor materials? A) Semiconductor Physics. B) Astrophysics. C) Thermodynamics. D) Quantum Mechanics. Show Answer Correct Answer: A) Semiconductor Physics. 15. What is the glass plate (like imaging or for drawing kolam) with microscopic electrical circuits that required for semiconductor photolithography processing called? A) Photomask. B) Silicon wafer. C) Transistor. D) Circuit board. Show Answer Correct Answer: A) Photomask. 16. Component that Convert AC to DC and allow current to flow in one Direction A) Capacitor. B) Diode. C) Inverter. D) Resistor. Show Answer Correct Answer: B) Diode. 17. What materials used in electronics? A) All the answer. B) Insulator. C) Semiconductor. D) Conductor. Show Answer Correct Answer: A) All the answer. 18. What is the role of doping in semiconductors? A) Doping increases the conductivity of semiconductors by introducing charge carriers. B) Doping decreases the conductivity of semiconductors by removing charge carriers. C) Doping has no effect on the conductivity of semiconductors. D) Doping is used to insulate semiconductors from electrical currents. Show Answer Correct Answer: A) Doping increases the conductivity of semiconductors by introducing charge carriers. 19. Which of the following features distinguishes semiconductor devices from vacuum tubes? A) Fragility. B) Large size. C) Low voltage operation. D) High power consumption. Show Answer Correct Answer: C) Low voltage operation. 20. The diode with High level of Doping is called ..... ? A) PN Diode. B) Zener Diode. C) None of the above. D) None of the above. Show Answer Correct Answer: B) Zener Diode. 21. A ..... is a filter that passes low frequencies well, but attenuates (reduces) higher frequencies. A) High-pass filter. B) Low-pass filter. C) Band-pass filter. D) None of the above. Show Answer Correct Answer: B) Low-pass filter. 22. In Operational Amplifier-Divider-the output voltage is A) M times multiplication of input voltage. B) D times division of input voltage. C) All the above. D) None of the above. Show Answer Correct Answer: B) D times division of input voltage. 23. Doping of a semiconductor material is termed as A) Adding of impurities to increase the resistance of the material. B) Adding of impurities to hold the material together. C) Adding of impurities to decrease the resistance of the material. D) Removing of impurities to get pure silicon. Show Answer Correct Answer: C) Adding of impurities to decrease the resistance of the material. 24. What is the significance of silicon in semiconductor manufacturing? A) Silicon is significant because it is the most abundant element on Earth. B) Silicon is significant in semiconductor manufacturing because it provides the necessary electrical properties and stability for creating electronic components. C) Silicon is primarily used for its thermal conductivity in manufacturing. D) Silicon is mainly used for its optical properties in fiber optics. Show Answer Correct Answer: B) Silicon is significant in semiconductor manufacturing because it provides the necessary electrical properties and stability for creating electronic components. 25. Majority carriers of N tpye semiconductors are ..... A) Electrons. B) Holes. C) All the above. D) None of the above. Show Answer Correct Answer: A) Electrons. ← PreviousNext →Related 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 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books