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Physics - Semiconductors

Practise 119 NEET previous year questions on Semiconductors, compiled from papers spanning 2002 to 2026. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEET tests.

Semiconductors has been asked in 25 of the 39 years of NEET papers analysed (1988–2026), with 119 questions in all. 66% of them were easy, 29% moderate and 5% tough. Most of its questions came from 2020, with 8 questions that year. In the last three years (2024–2026) it had 13 questions across 13 papers, about 1 per paper.

The chapter's 7 topics are not weighted equally: Diodes (35 questions, 29%), Logic gates (35 questions, 29%), and Junction Transistors (25 questions, 21%) have been asked the most. Diodes has also led over the last five years, with 10 questions. Junction Transistors has produced the most tough questions (3).

  1. 1The current in the circuit shown below is : (All diodes are ideal and identical)2026 (Cancelled)Diodes
  2. 2In the circuit shown below, the voltage appearing across the diode D will be of the form :2026 (Cancelled)Diodes
  3. 3Two statements are given below : A. When the forward bias voltage across a p-n junction diode increases above a certain threshold voltage, t2026 (Cancelled)Diodes
  4. 4An ideal Zener diode with breakdown voltage of V is reverse biased with a negative input voltage V. The magnitude of voltage difference betw2026 (Re-NEET)Diodes
  5. 5Three identical p-n junction diodes , and are connected across a battery as shown in the figure. If the width of the depletion regions of , 2026 (Re-NEET)Diodes
  6. 6The output of the given logic implementation is similar to the output of an/a _____ gate.2025Logic gates
  7. 7A full wave rectifier circuit with diodes and is shown in the figure. If input supply voltage volt, then at2025Diodes
  8. 8Consider the following statements A and B and identify the correct answer: A. For a solar-cell, the I-V characteristics lies in the IV quadr2024Special purpose diodes
  9. 9A logic circuit provides the output as per the following truth table : {array}{|l|l|l|} & B & Y \\ 0 & 0 & 1 \\0 & 1 & 0 \\1 & 0 & 1 \\1 & 12024Logic gates
  10. 10The output ( ) of the given logic gate is similar to the output of an/a2024Logic gates
  11. 11The I-V characteristics shown above are exhibited by a2024 (Re-NEET)Diodes
  12. 12When the output of an OR gate is applied as input to a NOT gate, then the combination acts as a2024 (Re-NEET)Logic gates
  13. 13The output for the inputs and of the given logic circuit is :2024 (Re-NEET)Logic gates
  14. 14A full wave rectifier circuit consists of two p - n junction diodes, a centre-tapped transformer, capacitor and a load resistance. Which of 2023 (All India)Rectifier
  15. 15Given below are two statements: Statement I : Photovoltaic devices can convert optical radiation into electricity. Statement I I : Zener dio2023 (All India)Diodes
  16. 16For the following logic circuit, the truth table is:2023 (All India)Logic gates
  17. 17A p-type extrinsic semiconductor is obtained when Germanium is doped with2023 (Manipur)Semiconductors
  18. 18The given circuit is equivalent to2023 (Manipur)Logic gates
  19. 19The above figure shows the circuit symbol of a transistor. Select the correct statements given below: (A) The transistor has two segments of2023 (Manipur)Junction Transistors
  20. 20In the given circuits (a), (b) and (c), the potential drop across the two p - n junctions are equal in:2022 (Phase 1)Diodes
  21. 21The truth table for the given logic circuit is:2022 (Phase 1)Logic gates
  22. 22In half wave rectification, if the input frequency is 60 Hz , then the output frequency would be2022 (Phase 1)Rectifier
  23. 23The incorrect statement about the property of a Zener diode is:2022 (Phase 2)Diodes
  24. 24Identify the equivalent logic gate represented by the given circuit:2022 (Phase 2)Logic gates
  25. 25The collector current in a common base amplifier using - -n transistor is . If of the electrons released by the emitter is accepted by the c2022 (Phase 2)Junction Transistors
  26. 26The electron concentration in an undefined n -type semiconductor is the same as hole concentration in a undefined p -type semiconductor. An 2021Semiconductors
  27. 27Consider the following statements (A) and (B) and identify the correct answer. (A) A Zener diode is connected in reverse bias when used as a2021Diodes
  28. 28For the given circuit, the input digital signals are applied at the terminals A , B and C . What would be the output at the terminal y ?2021Logic gates
  29. 29The increase in the width of the depletion region in a p-n junction diode is due to:2020 (Phase 1)Diodes
  30. 30For transistor action, which of the following statements is correct?2020 (Phase 1)Junction Transistors
  31. 31For the logic circuit shown, the truth table is:2020 (Phase 1)Logic gates
  32. 32The solids which have the negative temperature coefficient of resistance are:2020 (Phase 1)Semiconductors
  33. 33Out of the following which one is a forward biased diode?2020 (Phase 2)Diodes
  34. 34A n - p - n transistor is connected in common emitter configuration in which collector voltage drop across load resistance ( 800 ) connected2020 (Phase 2)Junction Transistors
  35. 35Which of the following gate is called universal gate?2020 (Phase 2)Logic gates
  36. 36An intrinsic semiconductor is converted into n -type extrinsic semiconductor by doping it with:-2020 (Phase 2)Semiconductors
  37. 37The correct Boolean operation represented by the circuit diagram drawn is,2019 (All India)Logic gates
  38. 38For a p - type semiconductor, which of the following statements is true?2019 (All India)Semiconductors
  39. 39The circuit diagram shown here corresponds to the logic gate,2019 (Odisha)Logic gates
  40. 40In the circuit shown in the figure, the input voltage V i is 20 V , V B E = 0 and V C E = 0 . The values of I B , I C and are given by2018Junction Transistors
  41. 41In a p - n junction diode, change in temperature due to heating2018Diodes
  42. 42In the combination of the following gates the output Y can be written in terms of inputs A and B as2018Logic gates
  43. 43In a common-emitter transistor amplifier, the audio signal voltage across the collector is 3 V. The resistance of collector is 3 kΩ . If cur2017Junction Transistors
  44. 44The given electrical network is equivalent to2017Logic gates
  45. 45Which one of the following represents forward bias diode?2017Semiconductors
  46. 46Consider the junction diode as ideal. The value of current flowing through AB is:2016 (Phase 1)Diodes
  47. 47A NPN transistor is connected in common emitter configuration in a given amplifier. A load resistance of 800 is connected in the collector c2016 (Phase 1)Junction Transistors
  48. 48To get output 1 for the following circuit, the correct choice for the input is:2016 (Phase 1)Logic gates
  49. 49For common emitter transistor amplifier, the audio signal voltage across the collector resistance of 2 k Ω is 4 V. If the current amplificat2016 (Phase 2)Junction Transistors
  50. 50The given circuit has two ideal diodes connected as shown in the figure below. The current flowing through the resistance R 1 will be2016 (Phase 2)Diodes

Frequently Asked Questions

1.How many questions are available for Semiconductors?

This chapter includes 119 questions compiled from NEET papers spanning 2002 to 2026.

2.Are these questions only from NEET, or from other exams too?

These are NEET questions specifically for the Semiconductors chapter. Questions from other exams like AIIMS or JIPMER are organised separately under their respective exam sections.

3.Is Semiconductors an important chapter for NEET Physics?

Semiconductors has appeared in 25 of the 25 years of NEET papers covered here, with 119 questions across 39 papers - about 3 per paper it appears in.

4.What is the difficulty level of Semiconductors questions in NEET?

Of the 119 questions analysed for this chapter, 66% are easy, 29% moderate and 5% tough. 2020 had the most, with 8 questions.

5.Which topics in Semiconductors should I focus on?

These topics have carried the most weightage in Semiconductors:

  • Diodes - 35 questions (29%)
  • Logic gates - 35 questions (29%)
  • Junction Transistors - 25 questions (21%)
  • Junction Transistors has produced the most tough questions (3).
6.Is Semiconductors's weightage in NEET going up or down?

Across all 39 papers analysed, Semiconductors has averaged about 3.1 questions per paper. In the last three years (2024–2026), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.