Solved question paper for PHYSICS Dec-2023 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics Dec-2023
PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2023
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-
Write briefly:
a) Give the physical significance of gradient, divergence and curl of a physical quantity.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
Write briefly:
b) Derive the relationship between electric field and potential (E=-
abla V).Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
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c) Define Meissner's effect in superconductivity.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
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d) State Bragg's law of diffraction in crystals.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
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e) Differentiate between spontaneous & stimulated emission.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH-
May 2025 Write briefly : f. Distinguish between Stimulated emission and spontaneous emission.
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Write briefly:
f) Define acceptance angle and numerical aperture in optical fibers.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH-
May 2018 Derive the expression for numerical aperture of an optical fibre. Discuss the relation between numerical aperture and acceptance angle. (4)
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Dec 2017 Derive the expression for numerical aperture of an optical fiber. Discuss the relation numerical aperture and acceptance angle
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May 2016 Derive the expression for numerical aperture of an optical fibre. Discuss the relation numerical aperture and acceptance angle. (4)
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Dec 2007 Define Acceptance angle and Numerical aperture in optical fibre.
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Write briefly:
g) Explain the concept of Ether.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
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h) Write the characteristics of a well-behaved function.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
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i) What do you understand by wave-particle duality?Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
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j) Write a few biomedical applications of nonmaterials.Very Short Answer 2 Marks Dec-2023 • PTU B-TECH -
a) Write Maxwell's equations in free space in their differential form and derive the EM wave equation.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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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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Dec 2011 Write Maxwell equations for free space.
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May 2009 Derive the relations for Maxwell\'s equations\'
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b) Prove that the velocity of EM waves in free space is equal to the velocity of light.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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a) Make a comparison of different properties for dia, para, ferro and ferri magnetic materials.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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b) Derive the London equations for superconductivity.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2018 Derive the London equations for superconductors and discuss how they explain Meissner effect. (4)
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May 2014 Derive the London equations and discuss how they explain the Meissner effect and flux penetration in a superconductor.
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May 2013 Derive London equation and discuss how they explain Meissner effect and flux penetration.
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a) What is the concept of Miller indices? Derive the formula for the distance between two adjacent planes of a simple cubic lattice.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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b) Deduce the Miller indices for planes in each of the following sets which intercept \(\vec{a},\vec{b}\) and \(\vec{c}\) at i) 3a, 3b, 2cShort Answer 8 Marks Dec-2023 • PTU B-TECH
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Dec 2023 b) Deduce the Miller indices for planes in each of the following sets which intercept \\\\(\\\\vec{a},\\\\vec{b}\\\\) and \\\\(\\\\vec{c}\\\\) at ii) a, 2b, c
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Dec 2023 b) Deduce the Miller indices for planes in each of the following sets which intercept \\\\(\\\\vec{a},\\\\vec{b}\\\\) and \\\\(\\\\vec{c}\\\\) at iii) a, b/2, c
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b) Deduce the Miller indices for planes in each of the following sets which intercept \(\vec{a},\vec{b}\) and \(\vec{c}\) at ii) a, 2b, cShort Answer 8 Marks Dec-2023 • PTU B-TECH
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Dec 2023 b) Deduce the Miller indices for planes in each of the following sets which intercept \\\\(\\\\vec{a},\\\\vec{b}\\\\) and \\\\(\\\\vec{c}\\\\) at i) 3a, 3b, 2c
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Dec 2023 b) Deduce the Miller indices for planes in each of the following sets which intercept \\\\(\\\\vec{a},\\\\vec{b}\\\\) and \\\\(\\\\vec{c}\\\\) at iii) a, b/2, c
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b) Deduce the Miller indices for planes in each of the following sets which intercept \(\vec{a},\vec{b}\) and \(\vec{c}\) at iii) a, b/2, cShort Answer 8 Marks Dec-2023 • PTU B-TECH
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Dec 2023 b) Deduce the Miller indices for planes in each of the following sets which intercept \\\\(\\\\vec{a},\\\\vec{b}\\\\) and \\\\(\\\\vec{c}\\\\) at i) 3a, 3b, 2c
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Dec 2023 b) Deduce the Miller indices for planes in each of the following sets which intercept \\\\(\\\\vec{a},\\\\vec{b}\\\\) and \\\\(\\\\vec{c}\\\\) at ii) a, 2b, c
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a) Define Einstein's coefficients of radiation and derive the relationship between them.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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b) Discuss the construction, working and energy level diagram of Ruby laser.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2025 Explain the construction and working of Ruby laser with the help of energy level diagram. Explain why it is pulsed laser?
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May 2018 Describe the working of Ruby laser with proper energy level diagram. (5)
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May 2015 Discuss the construction and working of a ruby laser.
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Dec 2014 Discuss the construction and working of a ruby laser.
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Dec 2009 Explain the working, construction and energy level diagram for Ruby laser.
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Dec 2008 Explain the construction, working and principle of Ruby Laser.
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a) Explain the allowed modes in an optical fibre. How are they related to normalized frequency?Long Answer 8 Marks Dec-2023 • PTU B-TECH
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May 2014 What is the meaning of allowed modes in an optical fibre? How are they related to normalized frequency? Distinguish between monomode and multimode fibres.
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b) Calculate the refractive indices of the core and cladding materials of a fibre from the following data: NA = 0.22, \(\mu_r = 0.012\), where NA is numerical aperture.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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a) Write Lorentz transformation equations and using them derive the expressions for length contract and time dilation in a relative motion.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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b) Derive the relativistic form of Newton's second law of motion when \(\vec{F}\) is parallel to \(\vec{v}\).Long Answer 8 Marks Dec-2023 • PTU B-TECH
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a) Define group and phase velocities of matter waves.Long Answer 8 Marks Dec-2023 • PTU B-TECH
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b) Derive time dependent Schrodinger wave equation.Long Answer 8 Marks Dec-2023 • 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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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 2012 Develop time independent Schrödinger Wave Equation and discuss its significance. (3,5)
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Dec 2009 Define Wave function and calculate the expression for Time dependent Schrodinger Wave Equation.
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Discuss the following techniques for the synthesis of nanoparticles: a) Ball millingLong Answer 8 Marks Dec-2023 • PTU B-TECH
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Dec 2019 Discuss Ball milling and Sol-gel methods for synthesis of nanoparticles.
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Discuss the following techniques for the synthesis of nanoparticles: b) Sol-gel techniqueLong Answer 8 Marks Dec-2023 • PTU B-TECH
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01 Where can I find engineering physics previous year question papers for Bachelor of Technology, 1st-2nd semester?
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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?
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