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Physics - Semiconductors

Practise 298 MHTCET previous year questions on Semiconductors, compiled from papers spanning 2007 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 MHTCET tests.

Semiconductors has been asked in 16 of the 17 years of MHTCET papers analysed (2007–2026), with 298 questions in all. 73% of them were easy, 23% moderate and 4% tough. Most of its questions came from 2025, with 48 questions that year. In the last three years (2024–2026) it had 143 questions across 59 papers, about 2.4 per paper.

The chapter's 7 topics are not weighted equally: Logic gates (79 questions, 27%), Diodes (73 questions, 24%), and Junction Transistors (63 questions, 21%) have been asked the most. Logic gates has also led over the last five years, with 65 questions. Diodes has produced the most tough questions (7).

  1. 1In the band structure of n-type semiconductor , the free electrons donated by impurity atoms occupy energy levels in20 Apr, 2026 (M)Semiconductors
  2. 2In a common emitter transistor amplifier, AC current gain is , the load resistance is and input resistance of the transistor is . The voltag20 Apr, 2026 (M)Junction Transistors
  3. 3The output Y of the following digital logic circuit will be '1' (one) for the inputs20 Apr, 2026 (M)Logic gates
  4. 4The depletion region of p-n junction20 Apr, 2026 (E)Diodes
  5. 5In Boolean expression implies that20 Apr, 2026 (E)Logic gates
  6. 6In n-type semiconductor A) pentavalent impurity are dopants and holes are majority carriers. B) trivalent impurity are dopants and electrons19 Apr, 2026 (M)Semiconductors
  7. 7For a two input logic gate, when the inputs are 'zero' and 'zero' the output is 'one'. When the inputs are 'one' and 'zero' the output is 'z19 Apr, 2026 (M)Logic gates
  8. 8The material used for solar cell should have band gap (A) equal to zero. (B) equal to eV. (C) between eV to eV. (D) equal to eV.19 Apr, 2026 (M)Special purpose diodes
  9. 9In the following electrical circuit, the reading in the milliammeter is (Take knee voltage of silicon diode V)19 Apr, 2026 (E)Diodes
  10. 10In a transistor, comparing the doping of emitter, base and collector, the part which is heavily doped and that which is lightly doped are re19 Apr, 2026 (E)Junction Transistors
  11. 11The Boolean expression for the given combination of logic gates is19 Apr, 2026 (E)Logic gates
  12. 12A diode and resistance are connected as shown in figures. Out of the following statements, which one is true? Diode in A) fig (1) and fig (218 Apr, 2026 (M)Diodes
  13. 13Which of the following logic gates will have an output of '1' (one) for the given inputs?18 Apr, 2026 (M)Logic gates
  14. 14Which one of the following statements is 'WRONG' regarding LED?18 Apr, 2026 (M)Special purpose diodes
  15. 15For intrinsic semiconductor, if and represent the number of holes per unit volume and the number of free electrons per unit volume respectiv18 Apr, 2026 (E)Semiconductors
  16. 16The output Y of the given logic circuit is18 Apr, 2026 (E)Logic gates
  17. 17In an NPN transistor, the collector current is 28 mA. If 80% electrons reach the collector, its base current in mA is18 Apr, 2026 (E)Junction Transistors
  18. 18In the circuit shown in figure all the three diodes D1, D2, D3 have forward resistance each and infinite backward resistance. If the battery17 Apr, 2026 (M)Diodes
  19. 19When the Zener diode is used as a voltage regulator, it is connected in17 Apr, 2026 (M)Diodes
  20. 20To get the truth table shown from the following logic circuit, the gate G should be17 Apr, 2026 (M)Logic gates
  21. 21A semiconductor X is made by doping a germanium crystal with indium . A second semiconductor Y is made by doping germanium crystal with arse17 Apr, 2026 (E)Semiconductors
  22. 22In common emitter configuration of transistor amplifier, , and represent the input resistance, load resistance and the a.c. current gain res17 Apr, 2026 (E)Junction Transistors
  23. 23In the following digital circuit, the output 'Y' will be '1' (one) for inputs 'A' and 'B' having values17 Apr, 2026 (E)Logic gates
  24. 24When a small amount of impurity atoms are added to a semiconductor then generally its resistivity16 Apr, 2026 (M)Semiconductors
  25. 25The resultant gate and its Boolean expression in the given circuit is16 Apr, 2026 (M)Logic gates
  26. 26In a transistor amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is a16 Apr, 2026 (M)Junction Transistors
  27. 27In which of the logic gate the following statement is true? "The output is high when either of the inputs is high but not if both inputs are16 Apr, 2026 (E)Logic gates
  28. 28Which of the following statement is NOT correct in the case of LED? (A) It is a heavily doped p-n junction diode. (B) It emits light only wh16 Apr, 2026 (E)Special purpose diodes
  29. 29Electrical conductivity of insulators is16 Apr, 2026 (E)Semiconductors
  30. 30If p-n junction diode is forward biased then15 Apr, 2026 (M)Diodes
  31. 31For a p-n junction diode, breakdown voltage occurs when15 Apr, 2026 (M)Diodes
  32. 32Photodiode is a device15 Apr, 2026 (M)Special purpose diodes
  33. 33In common emitter amplifier, a change of mA in the base current causes a change of mA in the collector current. If input resistance is k and15 Apr, 2026 (E)Junction Transistors
  34. 34In the diagram shown, the resistance between points A and B is ' ' when an ideal diode D is forward biased and is ' ' when ideal diode D is 15 Apr, 2026 (E)Diodes
  35. 35In the logic circuit diagram, when all the four inputs, A, B, C, D are 'one' the outputs , , are respectively (1, 1, 0). When the inputs A a15 Apr, 2026 (E)Logic gates
  36. 36In transistor amplifier, base emitter junction is forward biased and collector base junction is reversed biased. The current gain is13 Apr, 2026 (M)Junction Transistors
  37. 37In common emitter mode of transistor, the d.c. current gain is 20, the emitter current is 7 mA. The collector current is13 Apr, 2026 (M)Junction Transistors
  38. 38Which of the following graph represents the temperature (T) dependence of resistivity ( ) of a semiconductor?13 Apr, 2026 (M)Semiconductors
  39. 39Choose the correct statement about Zener diode:13 Apr, 2026 (E)Diodes
  40. 40If transistor having , is used in CE configuration, then for a change of mA in base current, what will be the change in collector current?13 Apr, 2026 (E)Junction Transistors
  41. 41A pure silicon crystal at temperature K has electron and hole concentration ( ) per m each and phosphorus atoms ( ) are added per cubic metr13 Apr, 2026 (E)Semiconductors
  42. 42When the conductivity of a semiconductor is only due to breaking of covalent bonds, the semiconductor is called11 Apr, 2026 (M)Semiconductors
  43. 43In common emitter transistor amplifier, the output resistance is k and the current gain . If power gain of amplifier is , what is the input 11 Apr, 2026 (M)Junction Transistors
  44. 44What does the following combination of gates produce?11 Apr, 2026 (M)Logic gates
  45. 45In energy band diagram of insulators, a band gap and the conduction band is respectively11 Apr, 2026 (E)Energy Bands in Solids
  46. 46In the case of NAND gate, if A and B are inputs and Y is the output then11 Apr, 2026 (E)Logic gates
  47. 47In common emitter mode of transistor, the d.c. current gain is , the emitter current is mA. The collector current is11 Apr, 2026 (E)Junction Transistors
  48. 48When LED is manufactured by using aluminium gallium arsenide (AlGaAs), it emits05 May, 2025 (E)Special purpose diodes
  49. 49Which of the following figure represents forward bias diode?05 May, 2025 (E)Diodes
  50. 50An AND gate is followed by a NOT gate in series. With two inputs 'A' and 'B', the Boolean expression for the output 'Y' will be05 May, 2025 (E)Logic gates

Frequently Asked Questions

1.How many questions are available for Semiconductors?

This chapter includes 298 questions compiled from MHTCET papers spanning 2007 to 2026.

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

These are MHTCET questions specifically for the Semiconductors chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Semiconductors an important chapter for MHTCET Physics?

Semiconductors has appeared in 16 of the 17 years of MHTCET papers covered here, with 298 questions across 106 papers - about 3 per paper it appears in.

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

Of the 298 questions analysed for this chapter, 73% are easy, 23% moderate and 4% tough. 2025 had the most, with 48 questions.

5.Which topics in Semiconductors should I focus on?

These topics have carried the most weightage in Semiconductors:

  • Logic gates - 79 questions (27%)
  • Diodes - 73 questions (24%)
  • Junction Transistors - 63 questions (21%)
  • Diodes has produced the most tough questions (7).
6.Is Semiconductors's weightage in MHTCET going up or down?

Across all 106 papers analysed, Semiconductors has averaged about 2.8 questions per paper. In the last three years (2024–2026), that average has stayed about the same, at about 2.4 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.