Solved question paper for PHYSICS Dec-2017 (B-TECH 1st-2nd)

Solved Question Paper

Engineering physics Dec-2017

PTU • B-TECH • Civil Engineering • 1st-2nd • Dec-2017

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, Maxwellâ€Ÿs 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 & Braggâ€Ÿs law in Crystals, Braggâ€Ÿs spectrometer, X-ray radiography.

4. Lasers:

Spontaneous & Stimulated emissions, Einsteinâ€Ÿs 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, Einsteinâ€Ÿs 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.

Question papers (year-wise) Solutions

Solved Questions

Solved

Tech. (Sem.1, 2) ENGINEERING PHYSICS Subject Code : BTPH 101 Paper ID : A1102

Short Answer Dec-2017 • PTU B-TECH

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Dec 2017 Tech. (Sem. 1, 2) ENGG. PHYSICS Subject Code: PH-101 Paper ID: A0122

Dec 2014 Tech (Sem.-1st & 2nd) ENGINEERING PHYSICS Subject Code: PH-101 Paper ID: [A0122] INSTRUCTIONS TO CANDIDATE:

Dec 2010 Tech. (Sem. \' Lstlznd) ENGINEERING PHYSICS SUB.TECT CODE : PH - 10L (2k4 & Onwards) Paper ID : [A0113] [Note : Pleasc fill subject code and paper ID on OMR] Instruction to\'Candidates:
Differentiate between dielectrics and conductors by taking suitable example(s).

Short Answer Dec-2017 • PTU B-TECH

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Define Poynting vector.

Short Answer Dec-2017 • PTU B-TECH

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May 2013 Define Poynting vector.
Suggest some method to detect Ultrasonic waves

Short Answer Dec-2017 • PTU B-TECH

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What is meant by stimulated emission?

Short Answer Dec-2017 • PTU B-TECH

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Dec 2016 What do you mean by stimulated emission?

May 2012 What is spontaneous emission?

May 2011 Define spontaneous and stimulated emission.

Dec 2011 Explain the meaning of stimulated emission.

Dec 2004 What is difference between stimulated and spontaneous emission?
What is meant by space lattice?

Short Answer Dec-2017 • PTU B-TECH

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Dec 2012 What do you mean by space lattice?
What do you mean by pulse broadening?

Short Answer Dec-2017 • PTU B-TECH

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What is the outcome of Michelson Morley Experiment?

Short Answer Dec-2017 • PTU B-TECH

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May 2016 How you interpret the negative result of the Michelson Morely experiment? (2)

Dec 2014 What were the conclusions of Michelson-Morley experiment?

Dec 2014 What were the results of Michelson-Morley Experiment?

Dec 2011 What was the objective of conducting the Michelson Morley experiment? Describe the experiment. How do you interpret its result?

Where do we use Lorentz transformations, and why.

Short Answer Dec-2017 • PTU B-TECH

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May 2012 Elaborate the concept and utility of Lorentz transformations.

May 2005 On the basis of Lorentz transformation discuss the following effects:
What do you understand by eigen functions.

Short Answer Dec-2017 • PTU B-TECH

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Dec 2020 What do you understand by eigen functions & eigen values in quantum mechanics?

May 2019 What do you mean by eigenfunctions and eigenvalues?

May 2005 What do you understand by Eigen values and Eigen functions?
Explain electron confinement.

Short Answer Dec-2017 • PTU B-TECH

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May 2013 What is electron confinement?

Dec 2011 What is Quantum confinement?
What do you understand by displacement current . Suggest a method to calculate it.

Short Answer Dec-2017 • PTU B-TECH

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May 2015 What is the origin of displacement current?

Dec 2015 What are the conduction and displacement currents?

May 2013 What do you mean by displacement current?

May 2012 What do you mean by displacement current?

Dec 2008 What is the cause of producing displacement current?

Solve Maxwell's equations in time varying fields.

Short Answer Dec-2017 • PTU B-TECH

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A magnetizing field of 1400 Am-1 produces a magnetic flux of 3x10-5 weber in an iron bar of cross sectional area 0.3 cm2. Calculate permeability and susceptibility of the bar.

Short Answer Dec-2017 • PTU B-TECH

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What do you understand by ferrites? Discuss their main applications.

Short Answer Dec-2017 • PTU B-TECH

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Dec 2017 Explain the term ‘ferrites’ Discuss various applications of ferrites.

May 2015 Write a short note on ferrites and their applications.

Dec 2015 What are ferrite materials? Discuss their atomic origin and give certain applications of ferrites. (4)

May 2011 What are ferrite materials? Give some of its useful applications.

Dec 2009 Mention some applications ofFerrite.materials.

May 2008 What are ferrites? Give their applications. R - sey [20ss] P.TO.

May 2005 Give some applications of ferrites.

Dec 2005 What are ferrites?
Find the maximum frequency present in the radiation from an X-ray tube whose accelerating potential is 5x104V.

Short Answer Dec-2017 • PTU B-TECH

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Discuss working principle and construction of Braggs spectrometer .

Short Answer Dec-2017 • PTU B-TECH

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Dec 2023 a) Describe Bragg’s spectrometer.
Using appropriate energy level diagram, discuss the working of He-Ne laser.

Short Answer Dec-2017 • 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?

May 2023 Discuss He-Ne laser with energy level diagram.

Dec 2017 Describe the working of He-Ne laser with proper energy level diagram . | M54016 Page 2 of 2

May 2016 Describe the working of He-Ne laser with proper energy level diagram. (5)

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)

May 2012 Draw energy level diagram and discuss working of He-Ne Laser.

May 2009 Explain the working, constructiou and energy level diagram for He-Ne laser.

Dec 2005 Discuss the principle of operation of He-Ne laser. Draw the energy level diagram and indicate t he wavelength of the radiation.
Discuss relevance of Einstein's coefficients in context of Lasing mechanism. | M54105 Page 2 of 2

Short Answer Dec-2017 • PTU B-TECH

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A glass fibre has a core material of refractive index 1.50 and cladding material of refractive index 1.45. If it is surrounded by air, compute the critical angle

Short Answer Dec-2017 • PTU B-TECH

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at core-cladding boundary and (ii) at cladding -air boundary.

Short Answer Dec-2017 • PTU B-TECH

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Discuss merits and demerits of multi mode optical fibres.

Short Answer Dec-2017 • PTU B-TECH

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The mass of a moving electron is 8 times its rest mass. Find its kinetic energy and momentum.

Short Answer Dec-2017 • PTU B-TECH

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What do you understand by simultaneity in relativity.

Short Answer Dec-2017 • PTU B-TECH

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Dec 2019 What is meant by the relativity of simultaneity?

Dec 2015 What do you understand by simultaneity of an event in the special theory of relativity?

May 2014 What do you mean by relativity of simultaneity? Explain it with help of an example. (4) a?

May 2012 What do you mean by simultaneity in relativity? (5,3)

Derive time independent Schrodinger wave equation and discuss its significance in today's context.

Short Answer Dec-2017 • PTU B-TECH

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May 2023 Derive time dependent and time independent Schrodinger wave equation.

Dec 2023 Develop time-dependent and time-independent Schrodinger wave equations.

Dec 2023 b) Derive time dependent Schrodinger wave equation.

May 2019 Derive the expression of time -dependent Schrodinger wave equation for a given wave function.

May 2018 Derive the expression for time dependent Schrodinger’s equation. (4)

Dec 2017 Derive the expression for time independent Schrodinger\'s equation.

May 2016 Derive the expression for time independent Schrodinger\'s equation. (4)

May 2016 Establish time dependent Schrodinger wave equation and further deduce time independent form of this equation. (5)

May 2013 Derive time-dependent Schrodinger wave equation. Give a physical interpretation of the wave function.

May 2012 State and derive time independent Schrodinger equation.

Dec 2012 Develop time independent Schrödinger Wave Equation and discuss its significance. (3,5)

Dec 2009 Define Wave function and calculate the expression for Time dependent Schrodinger Wave Equation.
What is the significance of quantum mechanics for macroscopic bodies.

Short Answer Dec-2017 • PTU B-TECH

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Explain the concept of Super-paramagnetism in view of nano synthesis.

Short Answer Dec-2017 • PTU B-TECH

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Discuss some important application(s) of nano particles.

Short Answer Dec-2017 • 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.

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.

Solved question paper for PHYSICS Dec-2017 (B-TECH 1st-2nd)

Engineering physics Dec-2017

PART A

PART B

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