Solved question paper for SCOP Dec-2023 (B-TECH 1st-2nd)
Solved Question Paper
Semi-Conductor and Optoelectronics Physics Dec-2023
PTU • B-TECH • Mechanical Engineering • 1st-2nd • Dec-2023
Semi-Conductor and Optoelectronics 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 Optoelectronics 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 optoelectronics 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.
These Questions are downloaded from www.brpaper.com. You can also download previous years question papers of 10th and 12th (PSEB & CBSE), B-Tech, Diploma, BBA, BCA, MBA, MCA, M-Tech, PGDCA, B-Com, BSc-IT, MSC-IT.
Solved Questions
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b) What is Capacitance-Voltage (CV) measurement? Explain the method to determine depletion width using CV measurement.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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a) How to determine the type of the semi-conductor using hot point probe method?Long Answer 8 Marks Dec-2023 • PTU B-TECH
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What is four-point probe method? How to calculate the band gap using Four-point probe method?Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 What is Four-point probe method? How to calculate the band gap using Four-point probe method?
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What is photo-detector? Explain the principle, construction and working of avalanche photodiode. Discuss its advantages.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 What is photo-detector? Explain the principle, construction and working of p-n photodiode. Discuss its disadvantages.
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Nov 2024 What is a photo-detector? Explain the principle, construction and working of an Avalanche photodiode. Discuss its advantages.
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Explain the principle, construction and working of a homo junction semi-conductor laser with diagram. Discuss the demerits of homojunction semiconductor laser.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 Explain the principle, construction and working of a hetero-junction semiconductor laser with diagram. Discuss the merits of heterojunction semiconductor laser.
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Obtain the expression for carrier concentration in p-type semiconductor.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 Obtain the expression for carrier concentration in extrinsic semiconductor.
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Distinguish between extrinsic and intrinsic semi-conductors. Discuss the dependence of fermi level on temperature for n-type extrinsic semiconductors.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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Dec 2023 What is the difference between intrinsic and extrinsic semiconductors? Discuss in detail the dependence of Fermi level on carrier concentration and temperature.
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What are main assumption of quantum free electron theory? Obtain the expression for density of energy states.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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What are the special features of classical free electron theory of metals? Derive an expression for the thermal conductivity of a metal. Write any two drawbacks of the classical free electron theory of metals.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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j) Laser beam sports are 1 mm and 4 mm at 1 m and 2 m distances respectively. Calculate the laser divergence.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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i) What are the necessary conditions for applying Van der Pauw method?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2025 Write briefly: i) What are the necessary conditions for applying Van der Pauw method?
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Nov 2024 What are the necessary conditions for applying Van der Pauw method?
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h) A 20 mW laser has a beam diameter of 2.2 mm. What is the intensity of the light assuming that it is uniform across the beam?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Nov 2024 Write briefly: h) A 10 mW laser has a beam diameter of 3.2 mm. What is the intensity of the light assuming that it is uniform across the beam?
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g) Discuss non-radiative recombination mechanism.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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f) Distinguish between Spontaneous and Stimulated emission.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2025 Write briefly: f) Distinguish between Spontaneous and Stimulated emission.
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e) What do you understand from carrier generation and recombination?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2025 Write briefly: e) What do you understand from carrier generation and recombination?
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Dec 2020 What do you mean by carrier generation and recombination process? [4]
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May 2019 What do you mean by carrier generation and recombination process? [4]
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d) Write a note on non-ohmic junctions.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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c) At what temperature we can expect a 20% probability that electrons in silver have an energy which is 20% above the Fermi energy? The Fermi energy of silver is 5.5 eV.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2025 Write briefly: c) At what temperature we can expect a 10% probability that electrons in silver have an energy which is 1% above the Fermi energy? The Fermi energy of silver is 5.0 eV.
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Nov 2024 Write briefly: c) At what temperature we can expect a 5% probability that electrons in silver have an energy which is 1% above the Fermi energy? The Fermi energy of silver is 4.0 eV.
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b) What is effective mass?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2025 Write briefly: b) What is effective mass?
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a) What is E-k diagram?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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FAQ
Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find Semi-Conductor and Optoelectronics Physics previous year question papers for Bachelor of Technology, 1st-2nd semester?
This page lists Semi-Conductor and Optoelectronics 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 Optoelectronics 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 Optoelectronics Physics usually cover?
The question papers here relate to the official Semi-Conductor and Optoelectronics Physics syllabus set by the university for this course and semester.
05 Does this page include a Semi-Conductor and Optoelectronics 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.