PH25C01 Applied Physics – I – Semester I – ECE – R-2025

Subject Code & Name: PH25C01 – Applied Physics – I

Regulation: R-2025

Semester: I (First Semester)

Branch: B.E. Electronics and Communication Engineering (ECE)

Credits / L-T-P: 3 Credits | L-T-P: 2-0-2

Course Objectives

• To impart knowledge and expose the essentials of physics in various engineering applications.

Full Unit-wise Syllabus

Unit I – Properties of Matter

Elasticity, Cantilever – Young’s modulus (non-uniform bending), Girders: Bridges and buildings, Viscosity: Stokes method – Surface tension: drop weight method, Thermal expansion, Thermal stress, Bimetallic strips, Expansion joints.

Practical: Non-Uniform bending, Young’s modulus of the material, Torsional pendulum, Rigidity modulus of the wire and moment of inertia of the disc.

Activities: Virtual demonstration of thermal stress.

Unit II – Oscillations

Simple Harmonic motion, Torsional pendulum, Couple per unit twist, Damped and Forced Oscillation.

Unit III – Waves

Waves on a stretched string, Energy and Power, standing waves, Ultrasonics, piezo-electric method, Acoustic grating, Electromagnetic waves: Maxwell equation, Production of EM waves by dipole antenna, Propagation of EM waves in free space, wave equation, Cell phone reception.

Practical: Melde’s string experiment, Frequency of an electrically vibrating metal tip.

Activities: Virtual demonstration of propagation of EM waves.

Unit IV – Quantum Mechanics

Black body radiation, Photoelectric effect, de Broglie hypothesis – Schrodinger Wave equation, Particle in a box (infinite potential well, three-dimensional box), Barrier penetration and quantum tunnelling.

Practical: Photo-electric effect – Determination of Planck’s constant.

Activities: Virtual demonstration of Scanning Transmission Electron Microscope.

Unit V – Applied Optics

Interference: Air wedge, Michelson’s Interferometer, Fiber optics: Structure of a fiber – Fiber Optic Communication System – Fiber Sensors (Virtual demo) – Displacement, pressure sensor and Temperature sensor – Einstein Co-efficient – Nd:YAG laser, CO2 laser (construction, functioning and applications), dye laser.

Practical: Ruling width of Compact disc using Laser, Thickness of a thin sheet/wire using Air wedge Method.

Activities: Demonstration of sensors and applications of Lasers.

Course Outcomes (COs)

CO	Description
CO1	Explain the physics concepts in various applications.
CO2	Apply the principles of wave optics and laser physics in practical systems.
CO3	Analyse the behaviour of materials under different conditions.
CO4	Conduct experiments in groups and interpret the data.

Assessment Pattern (Quick Note)

• Weightage: Continuous Assessment 50% | End Semester Examination 50%
• Internal methodology: Quiz (5%), Assignments (20%), Flipped Class (5%), Practical (30%), Internal Examinations (40%)

Source: Official Anna University – B.E. ECE R-2025 Syllabus

Last Updated: September 2026