Solved question paper for BT May-2023 (B-TECH 1st-2nd)
Solved Question Paper
Biotechnology May-2023
PTU • B-TECH • Information Technology • 1st-2nd • May-2023
Biotechnology 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 Biotechnology, so students can review how questions are typically framed in past exams and get a sense of the exam pattern. Many students search for biotechnology syllabus 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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1 (a) Explain briefly the difference between spontaneous and stimulated emission of radiation.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (b) State the necessary condition for Optical Fibre Communication.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (c) Define the magnetic susceptibility (xm) of a magnetic material.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (d) What are ferrite materials?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (e) Explain the phenomena of magnetostriction.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (f) Differentiate between hard and soft X-rays.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (g) Give the adverse effects of ultrasound waves.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (h) Explain the concept of wave-particle duality.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (i) In an experiment, tungsten cathode has a threshold wavelength 24006 is irradiated by ultraviolet light of wavelength 18006. Calculate the maximum energy of emitted photo-electrons.Very Short Answer 2 Marks May-2023 • PTU B-TECH
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1 (j) What do understand by a quantum well?Very Short Answer 2 Marks May-2023 • PTU B-TECH
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Describe the construction and working of He-Ne Laser with proper energy level diagram. Explain the role of Neon atoms in He-Ne Laser.Long Answer 8 Marks May-2023 • PTU B-TECH
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Differentiate between the step-index and graded-index multimode fibre.Long Answer 8 Marks May-2023 • PTU B-TECH
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Discuss the attenuation and dispersion of signals in optical fibre.Long Answer 8 Marks May-2023 • PTU B-TECH
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Differentiate paramagnetic, diamagnetic and ferromagnetic substances by illustrating simple experiments.Long Answer 8 Marks May-2023 • PTU B-TECH
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Discuss hard and soft magnetic materials with applications.Long Answer 8 Marks May-2023 • PTU B-TECH
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Dec 2020 Differentiate between soft and hard magnetic materials.
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What is Meissner effect? Show that superconductors are perfect diamagnets.Long Answer 8 Marks May-2023 • PTU B-TECH
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Give a qualitative explanation of the BCS theory of superconductors.Long Answer 8 Marks May-2023 • PTU B-TECH
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Dec 2020 Give a brief account of BCS theory of superconducting state. 4
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Explain and derive Bragg's law. Also give its applications in crystallography.Long Answer 8 Marks May-2023 • PTU B-TECH
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The wavelengths of first-order X-rays are 2.20A at 30°. Find the distance between the adjacent crystal planes.Long Answer 8 Marks May-2023 • PTU B-TECH
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Explain the Doppler’s principle of sound. Explain the properties of ultrasound waves and its propagation in biological tissues.Long Answer 8 Marks May-2023 • PTU B-TECH
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Derive Einstein’s photoelectric equation. How does it explain the laws of photoelectric emission?Long Answer 8 Marks May-2023 • PTU B-TECH
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Why Compton Effect is not observable with Visible Light?Short Answer 8 Marks May-2023 • PTU B-TECH
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What are Carbon nanotubes? Explain their types, properties, and applications.Long Answer 8 Marks May-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 Biotechnology previous year question papers for Bachelor of Technology, 1st-2nd semester?
This page lists Biotechnology 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 Biotechnology 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 Biotechnology usually cover?
The question papers here relate to the official Biotechnology syllabus set by the university for this course and semester.
05 Does this page include a Biotechnology syllabus 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.