Solved question paper for PHYSICS May-2012 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics May-2012
PTU • B-TECH • Civil Engineering • 1st-2nd • May-2012
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 -A is COMPULSOR Y.Short Answer May-2012 • PTU B-TECH
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May 2014 Section- Ais Compulsory.
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May 2009 Section -Ais Compulsory.
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Selecting at least TWO questions from SECTION -B & C each .Short Answer May-2012 • 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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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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Dec 2012 Select atleast TWO questions from SECTION - B & C.
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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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Write short notes on :Short Answer May-2012 • PTU B-TECH
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May 2024 Write short notes on:
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May 2019 Write briefly :
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May 2017 Write briefly :
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What is utility of Maxwell equations in reference to EM waves?Short Answer May-2012 • PTU B-TECH
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What do you mean by displacement current?Short Answer May-2012 • PTU B-TECH
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Dec 2017 What do you understand by displacement current . Suggest a method to calculate it.
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May 2015 What is the origin of displacement current?
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Dec 2015 What are the conduction and displacement currents?
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May 2013 What do you mean by displacement current?
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Dec 2008 What is the cause of producing displacement current?
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What do you understand by magnetic anisotropy?Short Answer May-2012 • PTU B-TECH
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Dec 2015 What do you understand by magnetostriction? 2 | M-54016 (S1)-228
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Dec 2014 How do you understand by the phenomenon of diamagnetism?
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May 2012 What do you understand by magneto-striction effect?
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Dec 2012 What do you understand by magnetostriction effect?
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May 2010 What do you mean by magnetostriction?
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What are type II superconductors?Short Answer May-2012 • 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 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 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 radiography?Short Answer May-2012 • PTU B-TECH
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Dec 2016 What do you mean by X-ray radiography?
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What are main components of a laser system?Short Answer May-2012 • PTU B-TECH
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Dec 2020 Write about the basic components of a laser system.
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What do you mean by time dilation?Short Answer May-2012 • PTU B-TECH
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Dec 2009 Explain the term time dilatation?
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Does ether exist? CommentShort Answer May-2012 • PTU B-TECH
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May 2018 Does ether exist? Comment
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Dec 2011 Does ether exist? Comment.
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What are matter waves?Short Answer May-2012 • PTU B-TECH
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What is nanophysics.Short Answer May-2012 • PTU B-TECH
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Deduce Maxwell equation using Faradays's law of electromagnetic induction.Short Answer May-2012 • PTU B-TECH
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In free space, E( x,t)=50 cos ( wt-x)ay V/m. Find the average power crossing a circular area of radius 5m in plane x = constant. (5,3) -180Short Answer May-2012 • PTU B-TECH
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What is the physical phenomenon behind super conductivity? How successful is this in today's context?Short Answer May-2012 • PTU B-TECH
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Elaborate the main features of BCS theory. (4,4)Short Answer May-2012 • PTU B-TECH
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A beam of X-rays, = 0.842 A° is incident on a crystal at a grazing angle of 8°35 when first order Bragg's reflection occurs. Calculate the glancing angle for 3 rd order reflection.Short Answer May-2012 • PTU B-TECH
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What are X-rays? How are they produced ? (4,4)Short Answer May-2012 • PTU B-TECH
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Draw energy level diagram and discuss working of He-Ne Laser.Short Answer May-2012 • PTU B-TECH
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May 2024 Explain the construction and working of He-Ne laser with the help of energy level diagram, What is the role of He in He-Ne laser?
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May 2023 Discuss He-Ne laser with energy level diagram.
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Dec 2017 Using appropriate energy level diagram, discuss the working of He-Ne laser.
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Dec 2017 Describe the working of He-Ne laser with proper energy level diagram . | M54016 Page 2 of 2
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May 2016 Describe the working of He-Ne laser with proper energy level diagram. (5)
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May 2016 Explain the construction and working of He -Ne laser with help of energy level diagram showing laser transitions and specify corresponding wavelengths. (5)
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May 2009 Explain the working, constructiou and energy level diagram for He-Ne laser.
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Dec 2005 Discuss the principle of operation of He-Ne laser. Draw the energy level diagram and indicate t he wavelength of the radiation.
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What is the concept of Holography? (6,2)Short Answer May-2012 • PTU B-TECH
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Find the core radius necessary for single mode operation at 800 nm in step index fibre with n l = 1.48 and n 2 = 1.47. Also find the Numerical Aperture and maximum acceptance angle.Short Answer May-2012 • PTU B-TECH
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May 2011 Find the core radius necessary for single mode operation at 820 nm of a step index fibre with nr= l\'480 and n, = l\'478\'
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What do you understand by Material dispersion? (4,4)Short Answer May-2012 • PTU B-TECH
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May 2013 Elaborate the concept of material dispersion. (4,4)
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Elaborate the concept and utility of Lorentz transformations.Short Answer May-2012 • PTU B-TECH
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Dec 2017 Where do we use Lorentz transformations, and why.
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May 2005 On the basis of Lorentz transformation discuss the following effects:
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What do you mean by simultaneity in relativity? (5,3)Short Answer May-2012 • PTU B-TECH
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Dec 2019 What is meant by the relativity of simultaneity?
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Dec 2017 What do you understand by simultaneity in relativity.
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Dec 2015 What do you understand by simultaneity of an event in the special theory of relativity?
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May 2014 What do you mean by relativity of simultaneity? Explain it with help of an example. (4) a?
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Compute the de-Broglie wavelength of a proton whose kinetic energy is equal to the rest energy of an electron. Mass of proton is 1840 times that of the electron.Short Answer May-2012 • PTU B-TECH
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What do you mean by normalization of a wave function? (4,4)Short Answer May-2012 • PTU B-TECH
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What are advantages of synthesizing nano materials?Short Answer May-2012 • PTU B-TECH
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Dec 2011 What are advantages of synthesizing nano material using So-gel method?
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Synthesis of nanotubes is a challenge . Comment. (4,4)Short Answer May-2012 • 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.