Solved question paper for PHYSICS Dec-2011 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics Dec-2011
PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2011
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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Select atleast Two questions from Section – B & C.Short Answer Dec-2011 • 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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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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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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(2 Marks each)Short Answer Dec-2011 • PTU B-TECH
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May 2014 (2 marks each)
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Dec 2011 (2 Marks each)
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Write Maxwell equations for free space.Short Answer Dec-2011 • PTU B-TECH
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Dec 2023 a) Write Maxwell\\\'s equations in free space in their differential form and derive the EM wave equation.
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May 2019 Write all for Maxwell’s equations in integral form for free space.
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May 2015 Using Maxwell’s equations, obtain the equations of electric and magnetic waves propagating in free space.
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May 2014 Writetthe four Maxwell’s equations in differential form.
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May 2009 Derive the relations for Maxwell\'s equations\'
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What do you mean by electromagnetic spectrum?Short Answer Dec-2011 • PTU B-TECH
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May 2013 What do you understand by electromagnetic spectrum?
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What are the important features of BCS theory?Short Answer Dec-2011 • PTU B-TECH
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Give important properties of X rays.Short Answer Dec-2011 • PTU B-TECH
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May 2012 Give important properties of X-rays
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How does a hologram differ from photograph?Short Answer Dec-2011 • PTU B-TECH
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Give important appli cations of optical fibres.Short Answer Dec-2011 • 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 fibres .
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Dec 2014 Give three applications of optical fibers. (3)
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Give Einstein postulates of special theory of relativity.Short Answer Dec-2011 • PTU B-TECH
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Dec 2020 Write Einstein ’ s two postulates of special theory of relativity.
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May 2018 Write the postulates of special theory of relativity.
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May 2017 Give basic postulates of special theory of relativity.
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May 2017 Give basic postulates of special theory of relativity.
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Dec 2017 Write the Einstein\'s postulates of special theory of relativity.
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May 2015 What were the postulates of special theory of relativity?
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May 2014 State the postulates of the Special Theory of Relativity.
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May 2013 What are postulates of special theory of relativity?
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May 2010 State and explain postulates of special theory of relativity with help of example.
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Dec 2009 Explain various postulates of Special theory ofRelativity.
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Dec 2007 Write the postulates of Einstein special theory of relativity.
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May 2005 State Einstein’s postulates of special theory of relativity.
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Dec 2004 State Einstein’s postulates of special theory of relativity.
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Does ether exist? Comment.Short Answer Dec-2011 • PTU B-TECH
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May 2018 Does ether exist? Comment
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May 2012 Does ether exist? Comment
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What are nano materials?Short Answer Dec-2011 • PTU B-TECH
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What is Quantum confinement?Short Answer Dec-2011 • PTU B-TECH
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Dec 2017 Explain electron confinement.
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May 2013 What is electron confinement?
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What is modified Ampere’s law? Discuss its significance in terms of Maxwell theory and obtain an expr ession for displacement current density.Short Answer Dec-2011 • PTU B-TECH
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May 2010 State and explain the Ampere\'s law and express it in differential form. Further explain how Maxwell modified this law to accept this as one of the Maxwell equations.
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Curl of a vector field re presents whirling/rotational features of the field. Justify.Short Answer Dec-2011 • PTU B-TECH
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What is the physical mech anism behind Meissner effect.Short Answer Dec-2011 • PTU B-TECH
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May 2019 Explain Meissner effect.
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Dec 2016 What do you understand by Meissner effect?
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May 2015 What is Meissner effect?
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Dec 2004 What is meissner effect?
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Discuss London ’s theory of superconductivity. J - 1380 2Short Answer Dec-2011 • PTU B-TECH
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What are continuous and characteri stic X-rays? How is the continuous X-ray spectrum and its short wavelength limit explained.Short Answer Dec-2011 • PTU B-TECH
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An X-ray photon is found to have its wave length doubled on being scattered through 90º. Find the en ergy of incident photon. (mass of electron = 9 × 10-31 Kg).Short Answer Dec-2011 • PTU B-TECH
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Find the coherence length for wh ite light, the wavelength of white light ranges from 400nm to 700nm.Short Answer Dec-2011 • PTU B-TECH
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Differentiate between spon taneous and stimulated emission by taking suitable examples. Which of them is applicable to laser action, and why.Short Answer Dec-2011 • PTU B-TECH
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A 20 km long fibre cab le has loss of 2 dB/Km and connector loss of 0.6 dB/Km. Find the total loss.Short Answer Dec-2011 • PTU B-TECH
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Derive an expression for pulse broadening due to intermodal dispersion in multimode step index fibre.Short Answer Dec-2011 • PTU B-TECH
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A particle of rest mass m 0 moves with a speed c/2. Calculate its mass, momentum, total energy and kinetic energy.Short Answer Dec-2011 • PTU B-TECH
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Explain the concept of Eins tein’s time dilation. Deduce the necessary relation.Short Answer Dec-2011 • PTU B-TECH
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Calculate the wave number of 10kV neutrons.Short Answer Dec-2011 • PTU B-TECH
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Explain Husenber g’s principle of Uncertainity.Short Answer Dec-2011 • PTU B-TECH
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What are advantages of synthesizing nano material using So-gel method?Short Answer Dec-2011 • PTU B-TECH
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May 2012 What are advantages of synthesizing nano materials?
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Advocate the utility of fullere ne structure in reference to the synthesis of nanotubes. ( ( (Short Answer Dec-2011 • 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.