# 21PHY12 21PHY22 Engineering Physics VTU Notes

### 21PHY12 / 21PHY22 Engineering Physics VTU Notes and Question Papers

Here you can download the 2021 Scheme First Year VTU Notes and Question Papers of 21PHY12 / 21PHY22 Engineering Physics.

### Module 1: Oscillations and Waves

Basics of SHM, derivation of equation for SHM. “Mechanical simple harmonic oscillators (mass suspended to spring oscillator), Equation of motion for free oscillations, Natural frequency of oscillations Damped Oscillations: Theory of damped oscillations (derivation), over damping, critical & under damping (Qualitative), quality factor.”

Theory of forced oscillations and resonance, sharpness of the resonance. Shock waves: “Mach number, Properties of Shock waves. Construction and working of Reddy shock tube, applications of shock waves. Numerical problems.”

### Module 2: Modern Physics & Quantum Mechanics

Wien’s, Rayleigh Jean’s, Stefan-Boltzmann, and Planck’s law. “Deduction of Wien’s and Rayleigh-Jeans law from Planck’s law. Wave-Particle dualism, de Broglie hypothesis – de Broglie wavelength. Heisenberg’s uncertainty principle and its physical significance, Application of uncertainty principle, Wave function Properties, Physical significance, Probability Density, Normalization, Eigenvalues, and Eigenfunctions.” Time independent Schrödinger wave equation.Particle in a box- Energy Eigenvalues and probability densities, Numerical problems

### Module 3: Lasers & Optical Fibers

Interaction of radiation with matter, Einstein’s coefficients. Working Principle, the procedure to Construct, and work of CO2 and semiconductor Lasers. Application of Lasers in Defence (Laser range finder) and medical applications: Eye surgery and skin treatment.
Intensity-based displacement sensor and Temperature sensor based on phase modulation, Merits, demerits, and Numerical problems.

### Module 4: Electrical Conductivity in Solids

Classical free electron theory, Quantum free electron theory, Physics of Semiconductors, Electric dipole, Dipole moment, Polarization of dielectric materials.

### Module 5: Material Characterization and Instrumentation Techniques

Principle, construction, and working of X-ray Diffractometer, crystal size determination by Scherrer equation.

Principle, construction, working, and applications of Atomic Force Microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Scanning tunneling electron microscopy (STEM).

Module wise Notes of 21PHY12 / 21PHY22 Engineering Physics

M1, M2, M3, M4, M5 (Uploaded Soon)

VTU Semester end and Model Question Papers