Solved question paper for SCP May-2020 (B-TECH 1st-2nd)
Solved Question Paper
Semi-Conductor and Physics May-2020
PTU • B-TECH • Mechanical Engineering • 1st-2nd • May-2020
Semi-Conductor and Physics previous year question papers on BRpaper are organized for students of Punjab Technical University’s Bachelor of Technology program, 1st-2nd semester. This section makes it easier to browse subject-wise old question papers for Semi-Conductor and Physics, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for semi-conductor and physics previous year question paper while preparing for exams, and this page is built to support exactly that kind of subject-wise browsing and revision. BRpaper is not the official website of Punjab Technical University or any institution, and it does not publish official notices or academic updates.
Solved Questions
Solved-
SECTION -B &C. have FOUR questions each.Short Answer May-2020 • PTU B-TECH
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May 2024 SECTION -B & C. have FOUR questions each.
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Dec 2024 SECTION -B & C. have FOUR questions each.
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May 2019 SECTION - B & C. have FOUR questions each.
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Select atleast TWO questions from SECTION-B&C.Short Answer May-2020 • PTU B-TECH
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May 2024 Select atleast TWO questions from SECTION -B&C.
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Dec 2024 Select atleast TWO questions from SECTION-B&C.
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May 2019 Select atleast TWO questions from SECTION - B & C.
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Discuss the physical significance of the wave function ‘Y.Short Answer May-2020 • PTU B-TECH
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May 2019 Discuss the physical significance of the wave function .
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Explain Fermi-Dirac distribution function. Plot this function for various temperatures including 0 K.Short Answer May-2020 • PTU B-TECH
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Explain the significance of Brillouin zone with particular reference to any cubic lattice.Short Answer May-2020 • PTU B-TECH
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What do you mean by effective mass of electron?Short Answer May-2020 • PTU B-TECH
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May 2019 What do you mean by negative effective mass of electron?
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May 2019 What do you mean by effective mass of electron?
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How photonic devices work.Short Answer May-2020 • PTU B-TECH
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What are the differences between stimulated and spontaneous emission?Short Answer May-2020 • PTU B-TECH
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Dec 2024 (h) What is the difference between spontaneous and stimulated emission in semiconductors?
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Dec 2024 What is the difference between spontaneous and stimulated emission In semiconductors? exams paper 7
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Why four probes are required for the measurement of resistivity of semiconductor in four probe method.Short Answer May-2020 • PTU B-TECH
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May 2019 Why four probes are required for the measurement of resistivity of semiconductor in four probe method?
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What is Schottky barrier diode? Q10, What is exciton? 1 | M-75360 (S1)-588 exams preparatoryShort Answer May-2020 • PTU B-TECH
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What is the effect of periodic potential on the energy of electrons in a metal? Explain it on the basis of Kronig Penny model and explain the formation of energy bands. [8]Short Answer May-2020 • PTU B-TECH
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Dec 2020 What is the effect of periodic potential on the energy of electrons in a metal? Explain it on the basis of Kronig Penny model and explain the formation of energy bands. [8]
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May 2019 What is the effect of periodic potential on the energy of electrons in a metal? Explain it on the basis of Kronig Penny model and explain the formation of energy bands. [8]
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Derive an expression for the densities of electrons and holes in the conduction and valence bands respectively of an intrinsic semiconductor [8]Short Answer May-2020 • PTU B-TECH
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May 2023 Derive an expression for the densities of electrons and holes in the conduction and valence bands respectively of an intrinsic semiconductor.
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Dec 2020 Derive an expression for the densities of electrons and holes in the conduction and valence bands respectively of an intrinsic semiconductor [8]
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May 2019 Derive an expression for the densities of electrons and holes in the conducti on and valence bands respectively of an intrinsic semiconductor. [8]
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What are n-type and p-type semiconductors? Show the acceptor and donor levels with neat diagram. [4]Short Answer May-2020 • PTU B-TECH
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Dec 2020 What are n - type and p - type semiconductors? Show the acceptor and donor levels with neat diagram. [4]
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Explain with diagrams forward and reverse biasing of a p-n junction. What is meant by avalanche breakdown? [4]Short Answer May-2020 • PTU B-TECH
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Dec 2020 Explain with diagrams forward and reverse biasing of a p - n junction. What is meant by avalanche breakdown? [4] -CQ15 . What do you mean by population inversion? Obtain a relation between transition probabilities of spontaneous and stimulated emission.
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What do you mean by population inversion? Obtain a relation between transition probabilities of spontaneous and stimulated emission. (3+5=8]Short Answer May-2020 • PTU B-TECH
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May 2019 What do you mean by population inversion ? Obtain a relation between transition probabilities of spontaneous and stimulated emission. [3+5=8]
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How does a semiconductor laser differ from other laser? Explain main features of the semiconductor laser and its applications. [8]Short Answer May-2020 • PTU B-TECH
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May 2023 How does a semiconductor laser differ from other laser? Explain main features of the semiconductor laser and its applications.
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Dec 2020 How does a semiconductor laser differ from other laser? Explain main features of the semiconductor laser and its applications. [8]
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May 2019 How does a semiconductor laser differ from other laser? Explain main features of the semiconductor laser and its applications. [8]
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What is photoconductivity? Explain principle and construction of a photovoltaic cell. [2+6=8]Short Answer May-2020 • PTU B-TECH
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Dec 2020 What is photoconductivity? Explain principle and construction of a photovoltaic cell. [2+6=8]
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What physical parameters can be measured from capacitance-voltage measurements? Describe a method for the measurement of divergence and wavelength of light. [3+5=8] NOTE: Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student. 2 | M-75360 (S1)-588Short Answer May-2020 • PTU B-TECH
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Dec 2020 What physical parameters can be measured from capacitance - voltage measurements? Describe a method for the measurement of divergence and wavelength of light. N OTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any pa ge of Answer Sheet will lead to UMC against the Student
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May 2019 What physical parameters can be measured form capacitance -voltage measurements? Describe a method for the measurement of divergence and wavelength of light. [3+5=8]
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find Semi-Conductor and Physics previous year question papers for Bachelor of Technology, 1st-2nd semester?
This page lists Semi-Conductor and Physics question papers uploaded for Punjab Technical University Bachelor of Technology, 1st-2nd semester, organized for subject-wise browsing where available.
02 Are these official Punjab Technical University question papers?
BRpaper is not the official website of Punjab Technical University. These papers are shared for reference and revision purposes only and are not official university material.
03 How can previous year Semi-Conductor and Physics papers help in exam preparation?
Reviewing past papers can help you understand how questions are typically framed, notice commonly repeated topics, and get a sense of the exam pattern before your own exam.
04 What kind of topics does Semi-Conductor and Physics usually cover?
The question papers here relate to the official Semi-Conductor and Physics syllabus set by the university for this course and semester.
05 Does this page include a Semi-Conductor and Physics previous year question paper or solved answers?
This page focuses on providing access to the previous year question papers themselves. A separate question bank or solved answers may not be available for every paper.
06 Can I find papers for other subjects in the same Bachelor of Technology?
Yes, BRpaper organizes papers by university, course, stream, and semester, so you can browse other subjects within the same Punjab Technical University Bachelor of Technology.