Solved question paper for PHYSICS Dec-2014 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics Dec-2014
PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2014
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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What is the physical significance of gradient of a scalar field?Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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Dec 2019 What is physical significance gradient of scalar field?
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Dec 2012 What is physical significance of gradient of a function?
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May 2008 What is the significance of gradient of a scalar?
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What information does the quantity poynting vector furnish?Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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Dec 2020 Give the expression for Poynting vector and its physical significance.
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Dec 2019 What does a Poynting vector measures?
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May 2018 What is physical significance of Poynting vector?
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What is the atomic origin of diamagnetism exhibited by certain materials?Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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May 2017 What is the atomic origin of paramagnetism exhibited by certain materials?
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May 2017 What is the atomic origin of paramagnetism exhibited by certain materials?
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May 2017 How does the diamagnetism arise on atomic basis?
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What are the essential conditions for a unit cell to be called a primitive cell?Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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May 2017 What are the essential conditions for a unit cell to be called a primitive cell?
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May 2017 What are the essential conditions for a unit cell to be called a primitive cell?
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Differentiate between spontaneous and stimulated emissions.Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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What is the basic principle of guiding the light wave through an optical fibre.Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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May 2017 How does light propagate through an optical fiber?
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May 2017 How does light propagate through an optical fiber?
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Dec 2014 What is the basic principle of guiding the light wave through an optical fiber?
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What were the conclusions of Michelson-Morley experiment?Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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Dec 2017 What is the outcome of Michelson Morley Experiment?
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May 2016 How you interpret the negative result of the Michelson Morely experiment? (2)
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Dec 2014 What were the results of Michelson-Morley Experiment?
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Dec 2011 What was the objective of conducting the Michelson Morley experiment? Describe the experiment. How do you interpret its result?
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Justify why a photon can't be brought to rest in any frame of reference.Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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May 2015 Justify why a photon can’t be brought to rest in any frame of reference.
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What are the essential requisites for a well behaved wave functions for a given system?Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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May 2017 List properties of a well behaved wave functions for a given system.
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May 2017 List properties of a well behaved wave functions for a given system.
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May 2010 What arc thc characteristics of a well behaved wave-function.
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Give a brief and broad outline of sol-gel synthesis of nanomaterials.Very Short Answer 2 Marks Dec-2014 • PTU B-TECH
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(4,4)Short Answer Dec-2014 • PTU B-TECH
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State and prove Poynting vector theorem. Give significance of each term.Short Answer Dec-2014 • PTU B-TECH
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May 2017 State Poynting theorem and interpret each term in its expression.
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May 2017 State Poynting theorem and interpret each term in its expression.
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May 2015 What is Poynting vector and give its significance ? State and prove Poynting vector theorem.
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Discuss various kinds of polarizations induced in the dielectric when it is subjected to external electric field.Short Answer Dec-2014 • PTU B-TECH
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Dec 2019 a) What is meant by polarization of a material? Mention the different mechanism of polarization in a dielectric.
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May 2016 Briefly discuss different dielectric polarization mechanisms. Also specify temperature dependence in each case. (4)
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Dec 2016 What are main characteristics of dielectric materials?
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May 2015 Discuss various polarizations induced in the dielectric when it is subjected to external electric field. (4,4)
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Dec 2011 Enumerate different polarization mechanisms in dielectrics?
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Dec 2005 What is dielectric polarization?
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Dec 2004 What is dielectric polarization?
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Describe how ultrasonic waves are generated using the method of magnetostriction.Short Answer Dec-2014 • PTU B-TECH
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May 2018 Explain the production of Ultrasonic waves using concept of Magnetostriction.
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May 2017 Describe how ultrasonic waves are generated using the method of magnetostriction. 5
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May 2017 Describe how ultrasonic waves are generated using the method of magnetostriction. 5
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Give a brie f account of occurrence of superconductivity using BCS theory.Short Answer Dec-2014 • PTU B-TECH
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May 2019 Explain BCS theory of superconductivity.
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May 2018 Give a quantitative explanation of BCS theory of superconductors. How does this theory explain major characteristics of superconductors? (4)
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May 2017 Give a brief account of BCS theory of superconductivity. (4)
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May 2016 Give a quantitative explanation of B CS theory of superconductors. H ow does this theory explain major characteristics of superconductors? (4)
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May 2015 Give a brief account of BCS theory of superconductivity. (5, 3)
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Dec 2014 Give a brief account of BCS theory of superconductivity emphasizing of formation of cooper pairs. (4) *******END********
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May 2011 Explain BCS theory of superconductivity.
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Dec 2009 Explain BCS theory of superconductivity.
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Dec 2008 Explain the BCS theory of superconductivity. 31 9x -91 E-524 2
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(5,3)Short Answer Dec-2014 • PTU B-TECH
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How are x -rays produced. Further discuss the origin of characteristic and continuous x -rays. M-54105 Page: 2Short Answer Dec-2014 • PTU B-TECH
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May 2017 Discuss the physical process of generation of x -rays. Further discuss the origin of characteristic and continuous x-rays. (4)
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May 2010 Discuss origin of characteristic and continuous x-rays.
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A certain orthorhombic crystal has a ratio of a: b: c of 0.4 28:1:0.376. Find Miller indices of the faces with intercepts 0.214:1:0.188.Short Answer Dec-2014 • PTU B-TECH
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May 2017 A certain orthorhombic crystal has a ratio of a : b : c of 0.428:1:0.376. Find Miller indices of the faces with intercepts 0.214:1:0.188. 3
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May 2017 A certain orthorhombic crystal has a ratio of a : b : c of 0.428:1:0.376. Find Miller indices of the faces with intercepts 0.214:1:0.188. 3
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Discuss the construction and working of a ruby laser.Short Answer Dec-2014 • PTU B-TECH
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May 2025 Explain the construction and working of Ruby laser with the help of energy level diagram. Explain why it is pulsed laser?
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Dec 2023 b) Discuss the construction, working and energy level diagram of Ruby laser.
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May 2018 Describe the working of Ruby laser with proper energy level diagram. (5)
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May 2015 Discuss the construction and working of a ruby laser.
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Dec 2009 Explain the working, construction and energy level diagram for Ruby laser.
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Dec 2008 Explain the construction, working and principle of Ruby Laser.
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Give a qualitative idea of formation and reconstruction of hologram.Short Answer Dec-2014 • PTU B-TECH
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May 2017 Give a qualitative idea of formation and reconstruction of hologram. 4
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May 2017 Give a qualitative idea of formation and reconstruction of hologram. 4
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What are different kinds of optical fibers. Discuss various kinds of dispersions observed when light propagates through an optical fiber.Short Answer Dec-2014 • PTU B-TECH
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Give three applications of optical fibres .Short Answer Dec-2014 • PTU B-TECH
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May 2017 Give three applications of optical fibers (3)
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Dec 2014 Give three applications of optical fibers. (3)
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Dec 2011 Give important appli cations of optical fibres.
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Show that Heisenberg's uncertainty principle is a natural consequence wave nature associated with moving material particles.Short Answer Dec-2014 • PTU B-TECH
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Obtain time independent Schrodinger's equation. Argue qualitatively that energy quantization is embedded in this equation.Short Answer Dec-2014 • PTU B-TECH
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Derive the expression for length contraction.Short Answer Dec-2014 • PTU B-TECH
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Dec 2016 Deduce the expression of length contraction using concept of Lorentz transformations. (5)
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The mean life of a muon, when it is at rest, is 2.2 μs. Calculate the average distance it will travel in vacuum before it decays, if it has velocity of 0.9c.Short Answer Dec-2014 • PTU B-TECH
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May 2017 The mean life of a muon, when it is at rest, is 2.2 s. Calculate the average distance it will travel in vacuum before it decays, if it has velocity of 0.9c. 3
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May 2017 The mean life of a muon, when it is at rest, is 2.2 s. Calculate the average distance it will travel in vacuum before it decays, if it has velocity of 0.9c. 3
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May 2017 The mean life of a m uon, when it is at rest, is 2.2 s. Calculate the average distance it will travel in vacuum before it decays, if it has velocity of 0.9c. (3)
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Discuss various techni ques for synthesis of nanomaterials.Short Answer Dec-2014 • PTU B-TECH
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Dec 2023 Explain the synthesis of nanomaterials using Ball Milling and Sol-gel Techniques.
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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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Write a short note on carbon nanotubes. ---:END:---Short Answer Dec-2014 • PTU B-TECH
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May 2025 Write briefly : h. What are Carbon Nanotubes (CNTs)?
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Dec 2023 Write short notes on: i) What are Carbon Nanotubes (CNTs)?
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May 2015 Write a short note on carbon nanotubes. (5, 3)
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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.
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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?
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