Learn

Friday, 9 October

JEE Main Physics · Semiconductor Electronics: Materials, Devices and Simple Circuits

Semiconductor Diodes in JEE Main

Semiconductor Diodes (Physics, Semiconductor Electronics: Materials, Devices and Simple Circuits) came 16 times in 14 of the 42 JEE Main shifts Lumi analysed, across 10 distinct ideas. 12 of them came in 2024–26; it was last asked in 2026.

Questions
16
in 14 shifts
Ideas asked
10
3 asked more than once
Numerical answer
3
19% of its questions
Pattern
Asked most years
last asked 2026
Questions each year
0360’172’200’212’220’234’243’255’26

In the shifts Lumi analysed for each year.

Difficulty and format
Easy 4Medium 12Hard 0

Format

  • Diagram based7 Q
  • Single correct5 Q
  • Numerical value3 Q
  • Assertion–reason1 Q
Ideas inside the topic
10 ideas
Where it sits

Part of Semiconductor Electronics: Materials, Devices and Simple Circuits, which had 46 questions in all. Semiconductor Diodes accounts for 35% of them. In Lumi's JEE taxonomy it belongs to Modern Physics.

Some questions sit in other chapters too: Alternating Current.

Every question

All 16 Semiconductor Diodes questions

Newest first, each with its options and official answer.

  1. 2 Apr 2026, Shift 1 · Q37For the given circuit (shown in part (A)) the time dependent input voltage vin(t)v_{in}(t) and corresponding output vo(t)v_o(t) are shown in part…MediumDiagram basedHas a figure
  2. 4 Apr 2026, Shift 1 · Q42Consider a circuit consisting of a capacitor (20 μ20\ \muF), resistor (100 Ω100\ \Omega) and two identical diodes as shown in figure. The…MediumDiagram basedHas a figure
  3. 4 Apr 2026, Shift 2 · Q45Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: A diode under…MediumAssertion–reason
  4. 4 Apr 2026, Shift 2 · Q46A diode has Zener voltage of 10 V and maximum power dissipation of 0.5 W, then the minimum resistance to be used in series with this diode…MediumNumerical value
  5. 5 Apr 2026, Shift 2 · Q45In a semiconductor p-n diode, the doping concentrations on p-side and n-side are 101510^{15} atoms/cm3^3 and 101810^{18} atoms/cm3^3,…MediumSingle correct
  6. 2 Apr 2025, Shift 1 · Q45A zener diode with 5 V zener voltage is used to regulate an unregulated dc voltage input of 25 V. For a 400 Ω400\ \Omega resistor connected…MediumSingle correct
  7. 7 Apr 2025, Shift 1 · Q45In the following circuit, the reading of the ammeter will be (Take Zener breakdown voltage = 4 V)MediumDiagram basedHas a figure
  8. 8 Apr 2025, Shift 2 · Q45The output voltage in the following circuit is (Consider ideal diode case)MediumDiagram basedHas a figure
  9. 9 Apr 2024, Shift 1 · Q48A light emitting diode (LED) is fabricated using GaAs semiconducting material whose band gap is 1.421.42 eV. The wavelength of light emitted…EasySingle correct
  10. 9 Apr 2024, Shift 2 · Q49The II-VV characteristics of an electronic device shown in the figure. The device is :EasySingle correctHas a figure
  11. 29 Jan 2024, Shift 1 · Q48In the given circuit, the breakdown voltage of the Zener diode is 3.0 V. What is the value of IzI_z?MediumDiagram basedHas a figure
  12. 30 Jan 2024, Shift 2 · Q49In the given circuit, the voltage across load resistance (RLR_L) is:MediumDiagram basedHas a figure
  13. 25 Jul 2022, Shift 1 · Q59The energy band gap of semiconducting material to produce violet (wavelength =4000=4000 Å) LED is ______ eV. (Round off to the nearest…EasyNumerical value
  14. 28 Jul 2022, Shift 1 · Q49Identify the solar cell characteristics from the following options :EasyDiagram basedHas a figure
  15. 9 Jan 2020, Shift 2 · Q20The current ii in the network is :MediumSingle correctHas a figure
  16. 9 Jan 2020, Shift 2 · Q25The circuit shown below is working as a 8 V dc regulated voltage source. When 12 V is used as input, the power dissipated (in mW) in each…MediumNumerical valueHas a figure