Solved question paper for PHYSICS May-2018 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics May-2018
PTU • B-TECH • Civil Engineering • 1st-2nd • May-2018
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-2018 • PTU B-TECH
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May 2024 SECTION-B &C have FOUR questions each.
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May 2019 SECTION - B & C have FOUR questions each.
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May 2018 SECTION - B & C have FOUR questions each.
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May 2017 SECTION - B & C. have FOUR questions each.
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May 2017 SECTION - B & C. have FOUR questions each.
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May 2016 SECTION -B & C. have FOUR questions each.
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May 2016 SECTION - B & C have FOUR questions each.
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Dec 2016 SECTION - B & C. have FOUR questions each.
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Dec 2016 SECTION - B & C. have FOUR questions each.
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May 2015 SECTION - B & C. have FOUR questions each.
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May 2015 SECTION - B & C. have FOUR questions each.
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Dec 2015 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 at least TWO questions from SECTION - B & C. M-54105 Page 1 of 2Short Answer May-2018 • 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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Dec 2018 Select atleast TWO questions from SECTION - B & C.
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May 2017 Select atleast TWO questions from SECTION - B & C.
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May 2017 Select atleast TWO questions from SECTION - B & C.
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May 2017 Select atleast TWO questions from SECTION - B & C.
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May 2016 Select atleast TWO questions from SECTION -B & C.
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May 2016 Select atleast TWO questions from SECTION - B & C.
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Dec 2016 Select at least TWO questions from SECTION - B & C.
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Dec 2016 Select at least TWO questions from SECTION - B & C.
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May 2015 Select atleast TWO questions from SECTION - B & C.
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May 2015 Select atleast TWO questions from SECTION - B & C.
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Dec 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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Dec 2011 Select at least Two questions from Section - B & C.
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Dec 2011 Select atleast 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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May 2009 Select atleast 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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What is physical significance of Poynting vector?Short Answer May-2018 • 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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Dec 2014 What information does the quantity poynting vector furnish?
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EM waves are transverse in nature. Comment and justify your answer.Short Answer May-2018 • PTU B-TECH
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What do you understand by type I superconductors?Short Answer May-2018 • 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 2023 Write short notes on: c) What are Type I and Type II Superconductors?
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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 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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What do you mean by crystallography?Short Answer May-2018 • PTU B-TECH
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May 2013 What do you understand by crystallography?
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What do you mean by optical pumping?Short Answer May-2018 • PTU B-TECH
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May 2018 Define the term ‘optical pumping’.
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Dec 2017 Define the term \'optical pumping\'.
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State the working principle of holographyShort Answer May-2018 • PTU B-TECH
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May 2013 What is the fundamental principle of a hologram?
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May 2011 What is holography?
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Dec 2011 What is a hologram? How is it produced and how is the image reconstructed from it?
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Dec 2010 What is the fundamental principle of a hologram?
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May 2005 What is holography?
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Dec 2005 What is holography?
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Explain the concept of Fibre connectors.Short Answer May-2018 • PTU B-TECH
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Does ether exist? CommentShort Answer May-2018 • PTU B-TECH
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May 2012 Does ether exist? Comment
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Dec 2011 Does ether exist? Comment.
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Differentiate between phase velocity and group velocityShort Answer May-2018 • PTU B-TECH
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May 2019 Differentiate between group and phase velocities of waves.
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May 2013 Differentiate between phase velocity and group velocity.
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Dec 2007 Distinguish between phase and group velocity.
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What is meant by nanoscaleShort Answer May-2018 • PTU B-TECH
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A parallel plate capacitor is filled with insulating material of dielectric constant k=2. What effect does this have on its capacitance?Short Answer May-2018 • PTU B-TECH
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Dec 2012 A parallel plate capacitor is filled with insulating material of dielectric constant k. What effect does this have on its capacitance?
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What do you mean by electromagnetic spectrum? Where do we use it M-54105 Page 2 of 2Short Answer May-2018 • PTU B-TECH
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Explain the production of Ultrasonic waves using concept of Magnetostriction.Short Answer May-2018 • PTU B-TECH
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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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Dec 2014 Describe how ultrasonic waves are generated using the method of magnetostriction.
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Discuss domain structures in paramagnetic materials.Short Answer May-2018 • PTU B-TECH
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Dec 2012 Discuss domain structures in ferromagnetic materials. (4,4)
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Write a brief note on x-ray radiography.Short Answer May-2018 • PTU B-TECH
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The 1st order Bragg’s maxima of electron diffraction in crystal having inter atomic spacing of 0.97A° occurs at glancing angle of 60 . Calculate deBroglie wavelength of electrons and their velocities. (4,4)Short Answer May-2018 • PTU B-TECH
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Dec 2012 The first order Bragg’s maxima of electron diffraction in crystal having inter atomic spacing of 0.99A° occurs at a glancing angle of 65°. Calculate deBroglie wavelength of electrons and their velocities. (4,4)
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Explain the pumping mechanism in the laser working and elaborate the concept of stimulated emission by taking a suitable example.Short Answer May-2018 • PTU B-TECH
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The output of a Ruby laser is not continuous. Comment and justify your answer (5,3)Short Answer May-2018 • PTU B-TECH
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The core of a glass fibre has a refractive index of 1.5 while its cladding is doped to give a fractional change in refractive index of 0.006. Find refractive index of cladding and the critical internal reflecting angle.Short Answer May-2018 • PTU B-TECH
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Dec 2012 The core of a glass fibre has a refractive index of 1.6 while its cladding is doped to give a fractional change in refractive index of 0.008. Find refractive index of cladding and the critical internal reflecting angle.
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Elaborate important characteristics of multi index fibres.Short Answer May-2018 • PTU B-TECH
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Dec 2012 Elaborate important characteristics of step index fibres. (4,4)
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A metal sheet of specific heat capacity 430 J Kg-1K-1 is heated from 0 to 99°C. Find the percentage increase in its mass.Short Answer May-2018 • PTU B-TECH
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Dec 2012 A block of metal of specific heat capacity 450 J Kg –1 K –1 is heated from 0 to 90°C. Find the percentage increase in its mass.
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Discuss relevance of Michelson Morley experiment in reference to special theory of relativity.Short Answer May-2018 • PTU B-TECH
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May 2017 Give the results of the Michelson-Morley experiment.
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May 2015 Discuss the Michelson-Morley experiment and give its conclusions.
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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 minimum uncertainty in the energy state of an atom if an electron remains in this state for 5X10-8 seconds?Short Answer May-2018 • PTU B-TECH
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Dec 2012 What is the minimum uncertainty in the energy state of an atom if an electron remains in this state for 10 –8 seconds?
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Develop time dependent Schrodinger wave equation and discuss its significance. (3,5) 9 a) Elaborate advantages and disadvantages of using Ball milling process for synthesizing nano materials.Short Answer May-2018 • PTU B-TECH
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Explain the utility of atomic structure and quantum mechanics in reference to nanophysics. (4,4)Short Answer May-2018 • PTU B-TECH
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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?
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.