Solved question paper for PHYSICS May-2014 (B-TECH 1st-2nd)
Solved Question Paper
Engineering physics May-2014
PTU • B-TECH • Mechanical Engineering • 1st-2nd • May-2014
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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Tech. (1% / 2"? Year) ENGINEERING PHYSICS PH — 101 fone No MAY 2014Short Answer May-2014 • PTU B-TECH
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Section- Ais Compulsory.Short Answer May-2014 • PTU B-TECH
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May 2012 SECTION -A is COMPULSOR Y.
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May 2009 Section -Ais Compulsory.
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Select at least Two questions from each ofthe Sections B & C. Section —AShort Answer May-2014 • 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 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 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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(2 marks each)Short Answer May-2014 • PTU B-TECH
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Dec 2011 (2 Marks each)
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Dec 2011 (2 Marks each)
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Will an atom having spherically symmetric charge distribution be polar or non-polar? Explain.Short Answer May-2014 • PTU B-TECH
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Explain briefly the concept of a ferromagnetic domain.Short Answer May-2014 • PTU B-TECH
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May 2024 What are ferromagnetic materials? Explain ferromagnetism using domain theory.
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May 2017 Give brief account of various phenomena involved i n formation of domains in ferromagnetic materials. (5)
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Dec 2011 What are the distinguishing ch aracteristics of ferromagnetism? Discuss the domain theory of ferromagnetism.
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May 2010 What are ferromagnetic domains? Explain their existence in terms of atomic dipole moments.
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May 2008 Discuss the domain theory of ferromagnetism.
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What do you. understand by a metastable state?Short Answer May-2014 • PTU B-TECH
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What are the special features of optical fibre communications thatymake these so important?Short Answer May-2014 • PTU B-TECH
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May 2008 What are the advantages of optical fibres in communication systems?
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Writetthe four Maxwell’s equations in differential form.Short Answer May-2014 • 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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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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State the postulates of the Special Theory of Relativity.Short Answer May-2014 • 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 2013 What are postulates of special theory of relativity?
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Dec 2011 Give Einstein 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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Why are X-rays used for crystal structure analysis?Short Answer May-2014 • PTU B-TECH
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Dec 2019 Why X-rays are suitable for studying crystal diffraction?
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May 2018 Why only x-rays are used for the crystal structure studies?
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May 2016 Why only x-rays are used for the crystal structure studies?
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Enumerate the important characteristics of a laser beam?Short Answer May-2014 • PTU B-TECH
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Dec 2019 Write two properties of laser beam.
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Dec 2017 What are the characteristics of laser light?
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Explain the meaning of normalization of a wavefunction.Short Answer May-2014 • PTU B-TECH
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May 2019 Explain the significance and normalization of wave function.
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May 2018 Describe ‘Normalization of wave function’.
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What is isotopic effect in superconductors?Short Answer May-2014 • PTU B-TECH
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May 2013 What is isotopic effect in superconductors? 1- 1441 [N- ]1- 1441
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What is the effect of an electric field on a non-polar molecule? Define atomic polarisability and atomic dipole moment. What are their dimensions?Short Answer May-2014 • PTU B-TECH
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The plates of a parallel plate capacitor are separated by 6.0 mm thick material of dielectric constant 2.8. If the electric field strength inside the dielectric is 10° Vim, determine the magnitudes of polarization vector and displacement vector, and the energy density in the dielectric.Short Answer May-2014 • PTU B-TECH
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Distinguish between dia-, para-, and ferro-magnetic materials. How does the magnetic susceptibility of a paramagnetic substance vary with temperature?Short Answer May-2014 • PTU B-TECH
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Determine the magnetization and magnetic flux density in a diamagnetic material of susceptibility -0.4 x 10-°, placed in a magnetic field of strength 10* Am.Short Answer May-2014 • PTU B-TECH
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Describe the construction and working of a He-Ne laser.Short Answer May-2014 • PTU B-TECH
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Dec 2023 What is laser? Describe the principle, construction and working of He-Ne laser.
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Dec 2019 Describe the principle, construction and working of He-Ne laser.
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May 2017 Discuss the construction and working of a He-Ne laser. (5)
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May 2011 Differentiate between three level and four level lasers. Give the construction and working of He-Ne laser.
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May 2008 Explain the construction and working of He-Ne laser.
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Dec 2007 Explain the action of He-Ne laser. How it is superior to Ruby laser?
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How does a semiconductor laser differ from other lasers?Short Answer May-2014 • PTU B-TECH
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What is the meaning of allowed modes in an optical fibre? How are they related to normalized frequency? Distinguish between monomode and multimode fibres.Short Answer May-2014 • PTU B-TECH
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Dec 2023 a) Explain the allowed modes in an optical fibre. How are they related to normalized frequency?
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The refractive indices of the core and cladding of.an optical fibre are 1.5 and 1.48, respectively. What is the fractional change inyrefractive index? Find the critical angle, the acceptance angle and numeri€alperture for a light ray entering from air into the fibre. Section —CShort Answer May-2014 • PTU B-TECH
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Define proper length.and proper time. On the basis of Lorentz transformations, derive an expression for time dilation. Give an example to show that time dilationjis a real effect.Short Answer May-2014 • PTU B-TECH
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Calculate the velocity of a particle if its kinetic energy is twice its rest mass energy.Short Answer May-2014 • PTU B-TECH
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Distinguish between continuous and characteristic X-ray spectra. How do you account for the origin of the characteristic X-rays? b),Find the shortest wavelength of X-rays that can be produced in a tube with an operating voltage of 12.4 kV.Short Answer May-2014 • PTU B-TECH
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What is Compton scattering? Derive an expression for Compton shift in wavelength. Why can’t Compton shift be observed with visible light?Short Answer May-2014 • PTU B-TECH
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The uncertainty in the position of a particle'is equal to its de Broglie wavelength. Calculate the uncertainty in its velocity.Short Answer May-2014 • PTU B-TECH
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Derive the London equations and discuss how they explain the Meissner effect and flux penetration in a superconductor.Short Answer May-2014 • PTU B-TECH
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Dec 2023 b) Derive the London equations for superconductivity.
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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 2013 Derive London equation and discuss how they explain Meissner effect and flux penetration.
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Determine the critical temperature and critica! magnetic field at 4.2 K for a given superconducting material if the critical fields at 14.1 K and 12.9 K are respectively 1.41x10° A/m and 4.205x10° A/m. —— —ID-_Short Answer May-2014 • 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?
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.
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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.