Solved question paper for PHYSICS Dec-2023 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics Dec-2023
PTU • B-TECH • Mechanical Engineering • 1st-2nd • Dec-2023
engineering 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 engineering 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 engineering physics with answers pdf 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.
PART A
1. EM waves & Dielectrics:
Physical significance of Gradient, Divergence & Curl, Relationship between Electric Field & Potential, Dielectric polarization, displacement Current, Types of polarization, Maxwell‟s Equations, Equation of EM waves in free space, velocity of EM waves, Poynting vector, Electromagnetic Spectrum ( Basic ideas of different region).
2. Magnetic Materials & Superconductivity:
Basic ideas of Dia, Para, Ferro & Ferri, Ferrites, Magnetic Anisotropy, Magnetostriction its applications in production of Ultrasonic waves, Superconductivity, Superconductors as ideal diamagnetic materials, Signatures of Superconducting state, Meissner Effect, Type I & Type II superconductors, London Equations, Introduction to BCS theory.
3. Elements of crystallography:
Unit cell, Basis, Space lattice, Crystal Systems, Miller Indices of Planes & Directions in cubic system, Continuous & Characteristic X-Rays, X-Ray Diffraction & Bragg‟s law in Crystals, Bragg‟s spectrometer, X-ray radiography.
4. Lasers:
Spontaneous & Stimulated emissions, Einstein‟s Coefficients, Population Inversion, Pumping Mechanisms, Components of a laser System, Three & four level laser systems; Ruby, He-Ne, CO2 and semiconductor Lasers, Introduction to Holography.
PART B
5. Fibre Optics:
Introduction, Acceptance Angle, Numerical Aperture, Normalized frequency, Modes of propagation, material dispersion & pulse broadening in optical fibres, fibre connectors, splices and couplers, applications of optical fibres.
6. Special Theory of Relativity:
Concept of Ether, Michelson Morley Experiment, Einstein‟s postulates, Lorentz transformation equations; length, time and simultaneity in relativity, addition of velocity, variation of mass with velocity, Mass-Energy and Energy-momentum relations.
7. Quantum Theory:
Need and origin of quantum concept, Wave-particle duality, Matter waves, Group & Phase velocities, Uncertainty Principle, Significance & normalization of wave function, Schrodinger wave equation: time independent & dependent, Eigen functions & Eigen values, particle in a box.
8. Nanophysics:
Nanoscale, surface to volume ratio, electron confinement, nanoparticles (1D, 2D, 3D), Nanomaterials, Unusual properties of nanomaterials, synthesis of nanomaterials- ball milling and sol-gel techniques, Carbon nanotubes (synthesis and properties), applications of nanomaterials.
Solved Questions
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Write short notes on: a) What is a Unit Cell?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: b) Distinguish between Intrinsic and Extrinsic Semiconductors.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: c) What are Type I and Type II Superconductors?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2023 What is superconductivity? Discuss Type-I and Type-II superconductors.
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Dec 2023 Mention different types of superconductors. How type-II superconductor differs from type-I superconductor?
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Dec 2020 Differentiate between Type - I & Type - II superconductors.
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May 2019 What are Type I and Type II superconductors?
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Dec 2019 What are Type-I and Type-II superconductors?
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May 2018 What do you understand by type I superconductors?
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May 2017 What are type I and type II superconductors and give their distinguishing features. 3
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May 2017 What are type I and type II superconductors and give their distinguishing features. 3
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May 2017 What are type I and type II superconductors? Give their distinguishing characteristics. (4)
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Dec 2017 What do you mean by Meissner effect? Discuss Type I and Type II Superconductors. ( b) Give a quantitative explanation of BCS theory of superconductors. How does this theory explain major characteristics of superconductors?
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Dec 2016 What are type I superconductors?
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May 2015 Give a brief account of Type I and II superconductors. (4,4)
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May 2012 What are type II superconductors?
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May 2012 Differentiate between type I and type II superconductors. (5,3)
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May 2011 What do you understand by type - I and type - II superconductors? Explain with examPles.
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Dec 2011 What is Meissner effect? Expl ain the difference between Type-I and Type-II superconductors.
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Dec 2010 Explain the deference between the Type I and Type II superconductors. \\\' (b) Give the salient features of BCS theory of superconductors.
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Dec 2005 What do you understand by type I and type II superconductors? Give the BCS theory of superconductivity.
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Write short notes on: d) Show that Curl of gradient is zero.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: e) What is Uncertainty Principle?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: f) Distinguish between Stimulated emission and Stimulated absorption.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: g) What is Holography?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: h) Define Normalized frequency.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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Write short notes on: i) What are Carbon Nanotubes (CNTs)?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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May 2025 Write briefly : h. What are Carbon Nanotubes (CNTs)?
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May 2015 Write a short note on carbon nanotubes. (5, 3)
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Dec 2014 Write a short note on carbon nanotubes. ---:END:---
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Write short notes on: j) What is the use of He in He-Ne laser?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH
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What are X-rays? Discuss the diffraction of X-ray from crystals and obtain Bragg's law.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2019 What is Laue equation for diffraction of X -rays by a crystalline solid? Show that the Bragg’s equation is a special case of Laue equation.
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May 2017 What is Bragg\'s law. Derive the Bragg ’s condition for x-ray diffraction. What are the limitations of Bragg\'s law? 5
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May 2017 What is Bragg\'s law. Derive the Bragg ’s condition for x-ray diffraction. What are the limitations of Bragg\'s law? 5
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May 2015 Derive Bragg’s law and discuss its applications in crystallography. (4,4)
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Dec 2015 What is Bragg’ s law and derive its expression for diffraction of x -rays? What are limitations of this law in determination of crystal structure? (4)
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May 2013 What is X-ray diffraction? Deduce Bragg’s Law for the diffraction of X-ray in a crystal. What are Bragg’s conditions for X-ray diffraction?
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May 2008 Derive the Bragg\'s equation for dififraction of X-Rays and discuss its\' application in X-Ray Crystallography.
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Dec 2005 Explain and deduce Bragg’s law in X-ray diffraction. Describe Bragg’s spectrometer and expl ain how it is used to determine the wave length of X-rays.
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What is Photodetector? Explain the construction and working of Photodiode. Discuss the disadvantages of Photodiode.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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What is Meissner effect? Explain it using London equations.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 What is Meissner effect? Explain it using London\\\'s equation.
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a) Write the Maxwell's equations and discuss the physical significance of each equation.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 a. Write the Maxwell\\\'s equations and discuss the physical significance of each equation.
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May 2019 Derive all Maxwell’s equations in free space and explain their physical significance.
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May 2018 Write Maxwell’s four equations of electromagnetic theory and briefly interpret each of them. (4)
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May 2017 Write Maxwell\'s equations in integral form and attach physical significance to each of them.
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Dec 2017 Write Maxwell\'s four equations of electromagnetic theory and briefly interpret each of them.
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May 2016 Write Maxwell’s four equations of electromagnetic theory and briefly interpret each of them. (4)
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Dec 2014 Write Maxwell’s equations in differential form and give their physical significance
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May 2011 Write down maxwell equations and explain their significance.
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Dec 2011 Write down the four Maxwell\'s equa tions in differential form. Discuss the significance of each. Explain Maxwell\'s modification of Ampere\'s law.
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Dec 2010 Write down Maxwell\'s equations and explain their physical significance.
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Dec 2008 Give the physical significance of Maxwell\'s equations.
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Dec 2005 Write maxwells equations. Explain the physic al significance of each equation.
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b) Explain Dielectric polarization. What is Displacement current?Long Answer 8 Marks Dec-2023 • PTU B-TECH
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What are Einstein's coefficients? Derive the relation between Einstein's coefficients and discuss the physical interpretation.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2018 Describe Einstein’s coefficients and the significance of relation between them. (3)
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May 2013 What are Einstein’s coefficients? Derive relation between them.
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Dec 2011 What are Einstein\'s coefficients? Explain their meaning and derive the relation between them. J - 1214 2
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Dec 2007 Write the physical significance of Einstein Coefficients.
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Dec 2005 What are Einstein’s coefficients? How are these co-related?
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Define Acceptance angle and Numerical Aperture. Derive the expression for Acceptance Angle.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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What is Photoelectric Effect? Explain the laws of Photoelectric Effects using Quantum Approach.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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Explain the synthesis of nanomaterials using Ball Milling and Sol-gel Techniques.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2017 Discuss sol-gel technique for synthesis of nanomaterials. 5
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May 2017 Discuss sol-gel technique for synthesis of nanomaterials. 5
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May 2015 Discuss various techniques for synthesis of nanomaterials.
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Dec 2014 Discuss various techni ques for synthesis of nanomaterials.
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Frequently Asked Questions
Answers about this subject, solved papers, and preparation.
01 Where can I find engineering physics previous year question papers for Bachelor of Technology, 1st-2nd semester?
This page lists engineering 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 engineering 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 engineering physics usually cover?
The question papers here relate to the official engineering physics syllabus set by the university for this course and semester.
05 Does this page include a engineering physics with answers pdf 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.