Solved question paper for PHYSICS Dec-2012 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics Dec-2012
PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-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 - B & C. have FOUR questions each.Short Answer Dec-2012 • 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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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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Select atleast TWO questions from SECTION - B & C.Short Answer Dec-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 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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Write briefly :Short Answer Dec-2012 • PTU B-TECH
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May 2024 Write short notes on:
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What is physical significance of gradient of a function?Short Answer Dec-2012 • PTU B-TECH
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Dec 2019 What is physical significance gradient of scalar field?
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Dec 2014 What is the physical significance of gradient of a scalar field?
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May 2008 What is the significance of gradient of a scalar?
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What is free space? Does it exist?Short Answer Dec-2012 • PTU B-TECH
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What do you understand by magnetostriction effect?Short Answer Dec-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 magnetic anisotropy?
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May 2012 What do you understand by magneto-striction effect?
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May 2010 What do you mean by magnetostriction?
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Define remanence and coercivity.Short Answer Dec-2012 • PTU B-TECH
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May 2013 Define retentivity and coercivity.
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What do you mean by space lattice?Short Answer Dec-2012 • PTU B-TECH
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Dec 2017 What is meant by space lattice?
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Are all holograms the same?Short Answer Dec-2012 • PTU B-TECH
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Give main advantages of fibre communication.Short Answer Dec-2012 • PTU B-TECH
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Define ‘proper length’ and ‘proper time’.Short Answer Dec-2012 • PTU B-TECH
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What do you understand by wave packet?Short Answer Dec-2012 • PTU B-TECH
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Dec 2016 What is the concept of wave packet?
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What is quantum dot?Short Answer Dec-2012 • PTU B-TECH
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Dec 2016 What is quantum dot? 2 | M- 54105 (S1)-362
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A parallel plate capacitor is filled with insulating material of dielectric constant k. What effect does this have on its capacitance?Short Answer Dec-2012 • PTU B-TECH
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May 2018 A parallel plate capacitor is filled with insulating material of dielectric constant k=2. What effect does this have on its capacitance?
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“Maxwell equations are reformulation of existing laws .” Comment and justify your answer. (3,5)Short Answer Dec-2012 • PTU B-TECH
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Outline some experimental facts about superconductivity.Short Answer Dec-2012 • PTU B-TECH
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Discuss domain structures in ferromagnetic materials. (4,4)Short Answer Dec-2012 • PTU B-TECH
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May 2018 Discuss domain structures in paramagnetic materials.
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What is Bravias lattice? Discuss with suitable example.Short Answer Dec-2012 • PTU B-TECH
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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)Short Answer Dec-2012 • PTU B-TECH
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May 2018 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)
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Differentiate between three level and four level lasers by taking suitable example(s).Short Answer Dec-2012 • PTU B-TECH
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May 2019 Differentiate between three & four level laser systems.
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What is the difference between an ordinary image and a hologram? (5,3)Short Answer Dec-2012 • PTU B-TECH
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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.Short Answer Dec-2012 • PTU B-TECH
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May 2018 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.
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Elaborate important characteristics of step index fibres. (4,4)Short Answer Dec-2012 • PTU B-TECH
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May 2018 Elaborate important characteristics of multi index fibres.
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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.Short Answer Dec-2012 • PTU B-TECH
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May 2018 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.
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“No signal can travel with a velocity faster than light ”. Comment and justify your answer. (4,4)Short Answer Dec-2012 • PTU B-TECH
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What is the minimum uncertainty in the energy state of an atom if an electron remains in this state for 10 –8 seconds?Short Answer Dec-2012 • PTU B-TECH
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May 2018 What is the minimum uncertainty in the energy state of an atom if an electron remains in this state for 5X10-8 seconds?
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Develop time independent Schrödinger Wave Equation and discuss its significance. (3,5)Short Answer Dec-2012 • PTU B-TECH
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May 2023 Derive time dependent and time independent Schrodinger wave equation.
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Dec 2023 Develop time-dependent and time-independent Schrodinger wave equations.
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Dec 2023 b) Derive time dependent Schrodinger wave equation.
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May 2019 Derive the expression of time -dependent Schrodinger wave equation for a given wave function.
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May 2018 Derive the expression for time dependent Schrodinger’s equation. (4)
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Dec 2017 Derive time independent Schrodinger wave equation and discuss its significance in today\'s context.
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Dec 2017 Derive the expression for time independent Schrodinger\'s equation.
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May 2016 Derive the expression for time independent Schrodinger\'s equation. (4)
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May 2016 Establish time dependent Schrodinger wave equation and further deduce time independent form of this equation. (5)
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May 2013 Derive time-dependent Schrodinger wave equation. Give a physical interpretation of the wave function.
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May 2012 State and derive time independent Schrodinger equation.
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Dec 2009 Define Wave function and calculate the expression for Time dependent Schrodinger Wave Equation.
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Elaborate the concept of particle confinement in context of nanophysics.Short Answer Dec-2012 • PTU B-TECH
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Elaborate advantages of using Sol-Gel process for synthesizing nanomaterials. (4,4)Short Answer Dec-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.