All Materials regarding to B.tech R-20 in Common 1st Year 1st Semester Applied Physics unit wise available.
👇👇Scroll Down for Important Questions and Topics Unit Wise 👇👇
| Common 1-1 Applied Physics | ||
|---|---|---|
| Chapters / Units | Download Link | |
| 1 | Unit 1 | Download |
| 2 | Unit 2 | Download |
| 3 | Unit 3 | Download |
| 4 | Unit 4 | Download |
| 5 | Unit 5 | Download |
Common 1-1 Applied Physics important Topics and Questions
Unit-I:
👉 Wave Optics 12hrs
Interference: Principle of superposition –Interference of light - Interference in thin films (Reflection
Geometry) & applications - Colors in thin films- Newton’s Rings- Determination of wavelength and
refractive index.
Diffraction: Introduction - Fresnel and Fraunhofer diffraction - Fraunhofer diffraction due to single
slit, double slit - N-slits (Qualitative) – Diffraction Grating - Dispersive power and resolving power of
Grating(Qualitative).
Polarization: Introduction-Types of polarization - Polarization by reflection, refraction and Double
refraction - Nicol’s Prism -Half wave and Quarter wave plates.
Unit-II:
👉 Lasers and Fiber optics 8hrs
Lasers: Introduction – Characteristics of laser – Spontaneous and Stimulated emissions of radiation –
Einstein’s coefficients – Population inversion – Lasing action - Pumping mechanisms – Ruby laser –
He-Ne laser - Applications of lasers.
Fiber optics: Introduction –Principle of optical fiber- Acceptance Angle - Numerical Aperture -
Classification of optical fibers based on refractive index profile and modes – Propagation of
electromagnetic wave through optical fibers - Applications.
Unit III:
👉 Quantum Mechanics, Free Electron Theory and Band theory 10hrs
Quantum Mechanics: Dual nature of matter – Heisenberg’s Uncertainty Principle – Significance and
properties of wave function – Schrodinger’s time independent and dependent wave equations– Particle
in a one-dimensional infinite potential well.
Free Electron Theory: Classical free electron theory (Qualitative with discussion of merits and
demerits) – Quantum free electron theory– Equation for electrical conductivity based on quantum free
electron theory- Fermi-Dirac distribution- Density of states (3D) - Fermi energy.
Band theory of Solids: Bloch’s Theorem (Qualitative) - Kronig - Penney model (Qualitative)-
E vs K diagram - v vs K diagram - effective mass of electron – Classification of crystalline solids–
concept of hole.
Unit-IV:
👉 Dielectric and Magnetic Materials 8hrs
Dielectric Materials: Introduction - Dielectric polarization - Dielectric polarizability, Susceptibility
and Dielectric constant - Types of polarizations- Electronic (Quantitative), Ionic (Quantitative) and
Orientation polarizations (Qualitative) - Lorentz internal field- Clausius-Mossotti equation-
Piezoelectricity.
Magnetic Materials: Introduction - Magnetic dipole moment - Magnetization-Magnetic susceptibility
and permeability - Origin of permanent magnetic moment - Classification of magnetic materials: Dia,
para, Ferro, antiferro & Ferri magnetic materials - Domain concept for Ferromagnetism & Domain
walls (Qualitative) - Hysteresis - soft and hard magnetic materials- Eddy currents- Engineering
applications.
Unit – V:
👉 Semiconductors and Superconductors 10hrs
Semiconductors: Introduction- Intrinsic semiconductors – Density of charge carriers – Electrical
conductivity – Fermi level – extrinsic semiconductors – density of charge carriers – dependence of
Fermi energy on carrier concentration and temperature - Drift and diffusion currents – Einstein’s
equation- Hall effect – Hall coefficient –Applications of Hall effect.
Superconductors: Introduction – Properties of superconductors – Meissner effect – Type I and Type II
superconductors – BCS theory (Qualitative) – Josephson effects (AC and DC) – SQUIDs – High Tc
superconductors – Applications of superconductors.
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