MOCK • NCERT Class 12Medium

NCERT Class 12 Physics Chapter 6 Semiconductor Electronics: Materials, Devices and Simple Circuits Test Mock Test

This free online test covers Chapter 6, Semiconductor Electronics: Materials, Devices and Simple Circuits, from the NCERT Class 12 Physics Part II textbook. The 28 questions are written directly from the chapter — definitions, processes, worked examples and the points the book italicises — so a score here tells you how much of the chapter actually stuck, not how well you guess. Each answer carries an explanation that says why the right option is right and why the other three fail, which is where most of the learning happens. Attempt it after your first read of the chapter, then again before the exam. There is no negative marking, and you can review the full solution the moment you submit.

Duration

28 mins

Questions

28 MCQs

Total Marks

28 pts

Negative

0 per wrong

Topics Covered in This Paper

Physics
28 Qs100%

Sample Questions

Q1.The essential difference between a vacuum tube and a semiconductor device, as the chapter puts it, is that in a semiconductor device:

  • AThe charge carriers are supplied by a heated cathode but flow within the solid
  • BThe charge carriers flow in a vacuum but are supplied by the solid
  • CThere are no mobile charge carriers at all, conduction being purely by displacement
  • DThe supply and flow of charge carriers take place within the solid itself, needing no heated cathode and no evacuated space

Q2.Classified by resistivity, semiconductors occupy the range:

  • AAbout 10^-2 to 10^-8 ohm metre, the same range as metals
  • BAbout 10^11 to 10^19 ohm metre, above both metals and insulators
  • CAbout 10^-5 to 10^6 ohm metre, between metals at 10^-2 to 10^-8 and insulators at 10^11 to 10^19
  • DExactly 1 ohm metre for every semiconductor

Q3.Which set correctly matches the type of semiconductor with its examples?

  • AElemental: anthracene and phthalocyanine; compound inorganic: Si and Ge
  • BElemental: polypyrrole and polyaniline; organic: CdS and GaAs
  • CElemental: Si and Ge; compound inorganic: CdS, GaAs, CdSe, InP; organic polymers: polypyrrole, polyaniline, polythiophene
  • DElemental: GaAs and InP; compound inorganic: Si and Ge; organic polymers: anthracene

Before you begin

6 quick notes

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Each wrong answer carries -0 marks.

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Disclaimer: The questions provided here are extracted and digitized from previous year papers using automated processes. They may contain typographical errors, formatting issues, or minor variations from the actual examination paper. While we have done our best to verify the accuracy of the official answer keys, discrepancies may occasionally exist. Please refer to the official commission website for the most authentic paper.

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FAQ

Frequently asked questions

Frequently Asked Questions

How many questions are in the NCERT Class 12 Physics Chapter 6 Semiconductor Electronics: Materials, Devices and Simple Circuits Test mock test?
This paper has 28 multiple-choice questions carrying 28 marks in total, to be attempted in 28 minutes.
Is the NCERT Class 12 Physics Chapter 6 Semiconductor Electronics: Materials, Devices and Simple Circuits Test mock test free to attempt?
Yes. You can attempt the full paper online for free on AI Test Planet, and see your score and correct answers immediately after submitting.
Does this paper have negative marking?
No, there is no negative marking on this paper, so an attempted guess costs you nothing.
Are solutions and explanations available?
Yes. After you submit, every question shows the correct answer with a step-by-step explanation, along with a topic-wise breakdown of your performance.