Top 20 Questions of PHYSICS (B-TECH Electronics and Communication Engineering 1st-2nd)
Most Repeated Questions
Top 20 Questions of Engineering physics
Previous year question paper with solutions for Top repeated questions of Engineering physics
PTU • B-TECH • Electronics and Communication Engineering • 1st-2nd
Browse Top 20 questions of PHYSICS (B-TECH Electronics and Communication Engineering 1st-2nd) previous year question papers for Top repeated questions of Engineering physics. This page helps PHYSICS students find semester-wise papers for revision, exam practice, and understanding previous exam patterns. These are the top twenty repeated questions identified from previous year papers for PHYSICS (B-TECH Electronics and Communication Engineering 1st-2nd), helping students focus on the most frequently asked topics.
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.
Top repeated questions
Top 20-
1.
Select at least Two questions from Section - B & C.
Appeared 29 times
Appeared in: May 2024, May 2019, May 2018, Dec 2018, May 2017, May 2016, Dec 2016, May 2015, Dec 2015, May 2014, May 2013, May 2012, Dec 2012, May 2011, Dec 2011, May 2010, Dec 2010, May 2009, Dec 2009, May 2008, Dec 2008
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2.
Mention different types of superconductors. How type-II superconductor differs from type-I superconductor?
Appeared 19 times
Appeared in: May 2023, Dec 2023, Dec 2020, May 2019, Dec 2019, May 2018, May 2017, Dec 2017, Dec 2016, May 2015, May 2012, May 2011, Dec 2011, Dec 2010, Dec 2005
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3.
SECTION - B & C. have FOUR questions each.
Appeared 18 times
Appeared in: May 2024, May 2019, May 2018, Dec 2018, May 2017, May 2016, Dec 2016, May 2015, Dec 2015, May 2013, Dec 2012
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4.
Write short notes on :
Appeared 15 times
Appeared in: May 2024, May 2019, May 2017, May 2016, Dec 2016, May 2015, Dec 2015, May 2013, May 2012, Dec 2012
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5.
Give Einstein postulates of special theory of relativity.
Appeared 14 times
Appeared in: Dec 2020, May 2018, May 2017, Dec 2017, May 2015, May 2014, May 2013, Dec 2011, May 2010, Dec 2009, Dec 2007, May 2005, Dec 2004
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