Engineering Physics (EP)
BT-201-
Unit 1Wave nature of particles and the Schrödinger equation
Introduction to quantum mechanics · Wave nature of particles · Operator formalism · Time‑dependent Schrödinger equation · Time‑independent Schrödinger equation · Particle in a one‑dimensional box · Born interpretation of the wavefunction · Free‑particle wavefunction and wave‑packets · Group velocity (v_g) and phase velocity (v_p) relations · Heisenberg uncertainty principle
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Unit 2Wave optics
Huygens’ principle · Superposition of waves · Interference of light: Young’s double‑slit experiment, Newton’s rings, Michelson interferometer, Mach‑Zehnder interferometer · Fraunhofer diffraction from a single slit and a circular aperture · Rayleigh criterion for resolution and its application to vision · Diffraction gratings and their resolving power
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Unit 3Introduction to solids
Free‑electron theory of metals · Fermi level for intrinsic and extrinsic semiconductors · Density of states · Bloch’s theorem for electrons in a periodic potential · Kronig‑Penney model (conceptual overview) · Origin of energy bands in solids · Current‑voltage characteristics of p‑n junctions · Zener diode operation · Solar cell fundamentals · Hall effect
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Unit 4Lasers
Einstein A and B coefficients for matter‑radiation interaction · Population inversion and optical amplification · Gas lasers: He‑Ne, CO₂ · Solid‑state lasers: ruby, Nd‑based lasers · Laser beam properties: monochromaticity, coherence, directionality, brightness · Laser speckles and applications in science, engineering, and medicine · Introduction to optical fibers: acceptance angle, numerical aperture, V‑number, attenuation
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Unit 5Electrostatics in vacuum
Electric field and electrostatic potential for various charge distributions · Electric displacement vector · Basic concepts of dielectrics · Vector calculus operators: gradient, divergence, curl · Stokes’ theorem · Gauss’ theorem · Continuity equation for charge density · Maxwell’s equations in vacuum and non‑conducting media · Poynting vector and electromagnetic energy flow
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Unit 6== END OF UNITS==