Solved question paper for PHYSICS May-2015 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics May-2015
PTU • B-TECH • Civil Engineering • 1st-2nd • May-2015
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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SECTION - B & C. have FOUR questions each.Short Answer May-2015 • PTU B-TECH
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May 2024 SECTION-B &C have FOUR questions each.
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May 2013 SECTION - B & C. have FOUR questions each.
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May 2013 SECTION - B & C have FOUR questions each.
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Dec 2012 SECTION - B & C. have FOUR questions each.
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Select atleast TWO questions from SECTION - B & C.Short Answer May-2015 • PTU B-TECH
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May 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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May 2018 Select at least TWO questions from each SECTION - B & C. M-54016 Page 1 of 2
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May 2018 Select at least TWO questions from SECTION - B & C. M-54105 Page 1 of 2
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May 2015 Select atleast TWO questions from SECTION - B & C.
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May 2014 Select at least Two questions from each ofthe Sections B & C. Section —A
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May 2013 Select atleast TWO questions from SECTION - B & C.
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May 2013 Select atleast TWO questions from SECTION - B & C.
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May 2012 Selecting at least TWO questions from SECTION -B & C each .
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May 2011 Select at least Two questions from Section - B & C
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May 2010 Select at least lbo questions from Section B & C.
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Dec 2010 Selecting at least Two questions from Section - B & c.
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Dec 2009 Select atleast TWo questions from Section - B & C.
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May 2008 Select atleast TWo questions from Section - B and C.
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Dec 2008 Select at least Two questions from Section - B&C.
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Write briefly :Short Answer May-2015 • PTU B-TECH
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May 2024 Write short notes on:
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What is the physical significance of divergence of a vector field?Short Answer May-2015 • PTU B-TECH
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May 2019 Give the physical significance of divergence and curl of a field.
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May 2017 What is the physical significance of curl of a vector field?
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May 2017 What is the physical significance of curl of a vector field?
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May 2016 What is the physical significance of divergence of a vector field?
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Show that divergence of curl of a vector field always vanishes.Short Answer May-2015 • PTU B-TECH
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May 2025 Write briefly : e. Show that Divergence of Curl of vector is zero.
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What is isotope effect?Short Answer May-2015 • PTU B-TECH
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Dec 2016 What is Isotope effect?
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Dec 2015 What is Isotope effect?
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Distinguish between the origin of characteristic and continuous x-rays.Short Answer May-2015 • PTU B-TECH
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May 2009 Differentiate between Continuous and Characteristic X-Rays.
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Dec 2009 Differentiate between hard and soft X-Rays.
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Discuss various pumping methods used in lasers for obtaining the state of population inversion.Short Answer May-2015 • PTU B-TECH
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What are various signal attenuation and losses in an optical fiber?Short Answer May-2015 • PTU B-TECH
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Dec 2015 Discuss various attenuations and losses of signal in optical fibers. (5)
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What are space-like and time-like intervals in relativity?Short Answer May-2015 • PTU B-TECH
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Using energy-time uncertainty principle, show that no exc ited state in atom can be mono-energetic in nature.Short Answer May-2015 • PTU B-TECH
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Dec 2015 Using time-energy uncertainty principle show that no excited state in any atom can be mono-energetic in nature.
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Why a particle trapped in a box can’t be at rest?Short Answer May-2015 • PTU B-TECH
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May 2015 Why a particle trapped in a box can’t be at rest?
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Define Nanoscience and Nanotechnology. 2 | M- 54105 (S1)-421Short Answer May-2015 • PTU B-TECH
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What is Poynting vector and give its significance ? State and prove Poynting vector theorem.Short Answer May-2015 • 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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Dec 2014 State and prove Poynting vector theorem. Give significance of each term.
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Write differential form of Maxwell's equations applicable in material medium. (6, 2)Short Answer May-2015 • PTU B-TECH
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May 2017 Derive differential form of Maxwell\'s equations in a material medium. (4)
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Discuss the origin of Dia-, para- and ferro-magnetism on atomic basis.Short Answer May-2015 • PTU B-TECH
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Give a brief account of BCS theory of superconductivity. (5, 3)Short Answer May-2015 • 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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Dec 2014 Give a brie f account of occurrence of superconductivity using BCS theory.
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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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Discuss the shape of diamond unit cell and derive its atomic packing fraction.Short Answer May-2015 • PTU B-TECH
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A diffraction pattern of a cubic crystal structure of lattice parameter 3.16 Å is obtained with monochromatic X -ray beam of wavelength 1.54 Å. The first line on this pattern was observed at 20.3°. Determine the inter -planer spacing and Miller ’s indices of the reflecting plane. (5, 3)Short Answer May-2015 • PTU B-TECH
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Discuss the construction and working of a ruby laser.Short Answer May-2015 • 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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Dec 2014 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 distinguishing features of holography from the conventional photography. (4, 4)Short Answer May-2015 • PTU B-TECH
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What is an optical f iber? Give the basic principle of light guidance through the optical fiber. Derive an expression for numerical aperture of an optical fiber.Short Answer May-2015 • PTU B-TECH
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Dec 2019 Explain the basic principle used in optical fibre for transmission of light. What is acceptance angle for an optical fibre? How it is related to numerical aperture. Find out the numerical aperture and acceptance angle of an optical fibre, if the refractive indices for core and cladding are 1.6 and 1.5 respectively.
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May 2017 What are different kinds of optical fibers ? How is light wave guided through an optical fiber? Derive and interpret the numerical aperture of an optical fiber. 5
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May 2017 What are different kinds of optical fibers ? How is light wave guided through an optical fiber? Derive and interpret the numerical aperture of an optical fiber. 5
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May 2017 What is an optical fiber ? Discuss the underlying principle of light guidance through optical fiber. Derive the expression for numerical aperture of optical fiber and attach physical significance to it. (5)
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What are Splices and Couplers? (6, 2)Short Answer May-2015 • PTU B-TECH
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What is the matter wave associated with moving particle ? Derive expression for phase and group velocities of such a wave packet.Short Answer May-2015 • PTU B-TECH
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Dec 2011 What is the difference betw een phase and group ve locities? Show that the wave group associated with a particle moves with the velocity of the
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Dec 2010 What is the difference between phase and group velocities? Show that the de Broglie group velocity associated with the wave packet is equal to the velocity of the particle.
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Give a brief account of need and origin of quantum mechanics. (4, 4)Short Answer May-2015 • PTU B-TECH
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Discuss the Michelson-Morley experiment and give its conclusions.Short Answer May-2015 • PTU B-TECH
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May 2018 Discuss relevance of Michelson Morley experiment in reference to special theory of relativity.
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May 2017 Give the results of the Michelson-Morley experiment.
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May 2011 Describe Michelson Morley experiment and show the negative results obtained from this experiment were interpreted\'
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Dec 2009 Explain Michelson Morley experiment and discuss its significance.
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May 2008 Explain Michelson-Morley experiment in detail and give the significance of negative results
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What is the length of the metre stick moving parallel to its length when its mass is 1.5 times its rest mass? (6, 2)Short Answer May-2015 • PTU B-TECH
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Discuss various techniques for synthesis of nanomaterials.Short Answer May-2015 • 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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Dec 2014 Discuss various techni ques for synthesis of nanomaterials.
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Write a short note on carbon nanotubes. (5, 3)Short Answer May-2015 • 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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Dec 2014 Write a short note on carbon nanotubes. ---:END:---
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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.
05 Does this page include a engineering physics with answers pdf or solved answers?
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06 Can I find papers for other subjects in the same Bachelor of Technology?
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