Solved question paper for PHYSICS Dec-2005 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics Dec-2005
PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2005
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
Solved-
What is dielectric polarization?Short Answer Dec-2005 • PTU B-TECH
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Dec 2019 a) What is meant by polarization of a material? Mention the different mechanism of polarization in a dielectric.
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May 2016 Briefly discuss different dielectric polarization mechanisms. Also specify temperature dependence in each case. (4)
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Dec 2016 What are main characteristics of dielectric materials?
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May 2015 Discuss various polarizations induced in the dielectric when it is subjected to external electric field. (4,4)
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Dec 2014 Discuss various kinds of polarizations induced in the dielectric when it is subjected to external electric field.
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Dec 2011 Enumerate different polarization mechanisms in dielectrics?
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Dec 2004 What is dielectric polarization?
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What are ferrites?Short Answer Dec-2005 • PTU B-TECH
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Dec 2017 What do you understand by ferrites? Discuss their main applications.
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Dec 2017 Explain the term ‘ferrites’ Discuss various applications of ferrites.
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May 2015 Write a short note on ferrites and their applications.
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Dec 2015 What are ferrite materials? Discuss their atomic origin and give certain applications of ferrites. (4)
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May 2011 What are ferrite materials? Give some of its useful applications.
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Dec 2009 Mention some applications ofFerrite.materials.
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May 2008 What are ferrites? Give their applications. R - sey [20ss] P.TO.
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May 2005 Give some applications of ferrites.
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Can we obtain light amplification in absence of stimulated emission? Explain.Short Answer Dec-2005 • PTU B-TECH
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What are Einstein’s coefficients? How are these co-related?Short Answer Dec-2005 • PTU B-TECH
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Dec 2023 What are Einstein\\\'s coefficients? Derive the relation between Einstein\\\'s coefficients and discuss the physical interpretation.
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May 2018 Describe Einstein’s coefficients and the significance of relation between them. (3)
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May 2013 What are Einstein’s coefficients? Derive relation between them.
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Dec 2011 What are Einstein\'s coefficients? Explain their meaning and derive the relation between them. J - 1214 2
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Dec 2007 Write the physical significance of Einstein Coefficients.
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Define acceptance angle and numerical opertune.Short Answer Dec-2005 • PTU B-TECH
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Show that reliativestic law of addition of velocities predicts value of velocity of light in all inertial frames.Short Answer Dec-2005 • PTU B-TECH
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What is the origin of X-rays? Explain.Short Answer Dec-2005 • PTU B-TECH
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May 2017 How are the characteristics x-rays produced?
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May 2015 What are the origins of characteristic and continuous x-rays?
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Dec 2015 What is the physical phenomenon underlying the generation of x-rays?
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What voltage must be applied to an electron mic roscope to produce electrons of wavelength of 0.5 º A. Given h=6.62 x 10 -34 J-sec, e=1.6 x 10 -19 C and m=9.1 x 10 -31 kg.Short Answer Dec-2005 • PTU B-TECH
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What is the physical significance of a wave function?Short Answer Dec-2005 • PTU B-TECH
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May 2011 What is the significance of wave function?
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Dec 2010 What is Bornls probability interpretation of wave-function?
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What are cooper pairs?Short Answer Dec-2005 • PTU B-TECH
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Dec 2014 What is a cooper pair and how it is formed
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Write maxwells equations. Explain the physic al significance of each equation.Short Answer Dec-2005 • PTU B-TECH
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May 2025 a. Write the Maxwell\\\'s equations and discuss the physical significance of each equation.
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Dec 2023 a) Write the Maxwell\\\'s equations and discuss the physical significance of each equation.
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May 2019 Derive all Maxwell’s equations in free space and explain their physical significance.
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May 2018 Write Maxwell’s four equations of electromagnetic theory and briefly interpret each of them. (4)
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May 2017 Write Maxwell\'s equations in integral form and attach physical significance to each of them.
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Dec 2017 Write Maxwell\'s four equations of electromagnetic theory and briefly interpret each of them.
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May 2016 Write Maxwell’s four equations of electromagnetic theory and briefly interpret each of them. (4)
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Dec 2014 Write Maxwell’s equations in differential form and give their physical significance
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May 2011 Write down maxwell equations and explain their significance.
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Dec 2011 Write down the four Maxwell\'s equa tions in differential form. Discuss the significance of each. Explain Maxwell\'s modification of Ampere\'s law.
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Dec 2010 Write down Maxwell\'s equations and explain their physical significance.
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Dec 2008 Give the physical significance of Maxwell\'s equations.
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Using Gauss’s law to find the electric field du e to a uniformly charged solid sphere at a point wh ich lies inside the sphere.Short Answer Dec-2005 • PTU B-TECH
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Explain the following termsShort Answer Dec-2005 • PTU B-TECH
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Magnetic domainShort Answer Dec-2005 • PTU B-TECH
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Magnetic anisotropyShort Answer Dec-2005 • PTU B-TECH
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MagnetosrictionShort Answer Dec-2005 • PTU B-TECH
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What is difference between soft and hard magne tic materials?Short Answer Dec-2005 • PTU B-TECH
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Dec 2017 Discuss the complete classification of magnetic materials. What are the differences between soft and hard magnetic materials?
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May 2011 What is the difference between soft and hard magnetic materials\' 20 @) Explainthetermfollowingterms:
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May 2005 What do you understand by magnetic materials? Wh at are differences between hard and soft magnetic materials?
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Discuss the principle of operation of He-Ne laser. Draw the energy level diagram and indicate t he wavelength of the radiation.Short Answer Dec-2005 • 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 2012 Draw energy level diagram and discuss working of He-Ne Laser.
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May 2009 Explain the working, constructiou and energy level diagram for He-Ne laser.
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What is holography?Short Answer Dec-2005 • PTU B-TECH
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May 2018 State the working principle of holography
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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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Explain the difference between single mode and multi mode transmission in their fiber optics.Short Answer Dec-2005 • PTU B-TECH
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May 2013 What is meant by modes? Compare a single mode and multimode fibre. (4,4)
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Dec 2010 What do you understand by Single mode and Multimode fibre?
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Calculate the max value of the angle of incide nce that a ray can make with the axis of a fiber su ch that it is guided through the fiber for the following fiber parameters:Short Answer Dec-2005 • PTU B-TECH
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n 1 = 1.6, n 2 = 1.5 (ii) n 1 = 2.1, n 2 = 1.5Short Answer Dec-2005 • PTU B-TECH
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Explain the postulates of theory of relativity and derive lorentz transformation equation.Short Answer Dec-2005 • PTU B-TECH
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Dec 2019 Write down the postulates of special theory of relativity. Derive Lorentz transformation equation.
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Dec 2008 Derive Lorentz\'s transformation equations and apply thern to explain
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A certain process require 10 -6 sec to occur in an atom at rest in laboratory. How much time will this process to an observer in the laboratory, when the atom is moving with a speed of 5 x 10 7 m/s?Short Answer Dec-2005 • PTU B-TECH
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Explain and deduce Bragg’s law in X-ray diffraction. Describe Bragg’s spectrometer and expl ain how it is used to determine the wave length of X-rays.Short Answer Dec-2005 • PTU B-TECH
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Dec 2023 What are X-rays? Discuss the diffraction of X-ray from crystals and obtain Bragg\\\'s law.
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May 2019 What is Laue equation for diffraction of X -rays by a crystalline solid? Show that the Bragg’s equation is a special case of Laue equation.
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May 2017 What is Bragg\'s law. Derive the Bragg ’s condition for x-ray diffraction. What are the limitations of Bragg\'s law? 5
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May 2017 What is Bragg\'s law. Derive the Bragg ’s condition for x-ray diffraction. What are the limitations of Bragg\'s law? 5
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May 2015 Derive Bragg’s law and discuss its applications in crystallography. (4,4)
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Dec 2015 What is Bragg’ s law and derive its expression for diffraction of x -rays? What are limitations of this law in determination of crystal structure? (4)
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May 2013 What is X-ray diffraction? Deduce Bragg’s Law for the diffraction of X-ray in a crystal. What are Bragg’s conditions for X-ray diffraction?
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May 2008 Derive the Bragg\'s equation for dififraction of X-Rays and discuss its\' application in X-Ray Crystallography.
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An x-ray tube works at 18 kv. Find the maximum speed of electron striking the anti-cathode.Short Answer Dec-2005 • PTU B-TECH
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May 2013 An X-ray tube operates at 13.6 kV. Find the maximum speed of electron striking the target.
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Discuss compton’s scattering and derive a relation for change in wavelength of the scattered photon.Short Answer Dec-2005 • PTU B-TECH
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Explain briefly uncertainty principle.Short Answer Dec-2005 • PTU B-TECH
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Dec 2017 Describe \'Uncertainty principle\'.
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May 2016 State and explain the uncertainty principle. (2)
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May 2011 What is the importance of uncertainty principle? R-541 P.T,O.
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Dec 2004 What is Uncertainty principle?
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What do you understand by type I and type II superconductors? Give the BCS theory of superconductivity.Short Answer Dec-2005 • 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 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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Frequently Asked Questions
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.