2K6 EN102: ENGINEERING PHYSICS

Module I (11 hours)
Interference of light: Interference from plane parallel thin films – Colours of thin films by reflected light – Newton’s rings Measurement of wave length – Thin wedge shaped air film – Air wedge – Testing of optical planes of surfaces. Diffraction of light – Introduction to Fresnel and Fraunhofer diffraction – Distinction between the two diffractions – Simple theory of plane transmission grating. Polarization of light – Double refraction – Nicol prism – Quarter and half wave plates – Production and detection of elliptically and circularly polarized light – Rotatory polarization – Laurent’s half shade polarimeter – Applications of polarized light.
Module II (11 hours)
Quantum Mechanics – Newtonian Mechanics and quantum mechanics – Uncertainty principle – The wave functions – Shrodinger wave equation for free particle – Potentials in Shrodinger equation – Time independent Shrodinger equation – Time dependent Shrodinger equation – Expectation values – Derivation of Shrodinger equation – Application – Particle in a box ( motion in one dimension)NMR and ESR – Basic principles of Nuclear Magnetic Resonance (NMR) and Electron Spin Resonance (ESR) – Experimental Method for detection of NMR and ESR – Applications
Module III (11 hours)
Laser Physics – Basic concepts of Laser – Spontaneous and stimulated emission – Absorption – Population inversion – Optical Pumping – Construction and components of Laser – Ruby Laser, Helium – Neon Laser and semiconductor laser – Applications – Basic principle of Holography and its application Fibre Optics – Basic Principles – Fiber Construction – Fiber Dimensions – Light propagation in fiber – Signal Distortion in optical fibers and transmission losses (Brief ideas only ) – Light Wave communication using optical fibers and its advantages – Fiber Amplifiers and EDFAs –Applications of optical fibers. Non Destructive Testing –X – rays –Properties and production – X – ray radiography – Stereo radiography – CT scan – Ultrasonics – properties – NDT using ultrasonics – Electrical method – Magnetic method – ultrasound scanning – MRI scan
Module IV (13 hours)
Electron theory of solids. Classical free electron theory – drift velocity – conductivity – relaxation time – mean free path – temperature dependence of resistivity – relation between thermal and electrical conductivities ( Weidman – Frenz law ) – Quantum free electron theory – density of states – Fermi distribution function – Fermi energy Band theory of solids (Qualitative only) – Band structure of metals, semiconductors and insulators – Classifications of semiconductors on the basis of Fermi level and Fermi energy – Impurity levels in N – type and P – type semi conductors. Hall Effect – introduction – Measurement of Hall voltage and Hall coefficient – Importance of Hall effect. Super conductivity – Properties ofsuperconductors – Josephson Effect and tunneling (qualitative) – B. C. S Theory of superconductivity (qualitative) – Applications of super – conductivity.

Reference Books:

1. Brijlal & Subrahmanyam. N. “Text Book of Optics”, S. Chand
2. Rajendran and Marikani: Applied Physics for Engineers 3rd edition – TMH
3. A. S. Vasudeva S “ Modern Engineering Physics”, S. Chand
4. Jenkins F. A & White H. E. “Fundamentals of Optics”, Mc Graw Hill.
5. M. Arumugam: Material science: Anuradha Publications
6. S. O. Pillai “Solid State Physics” New Age International.
7. Srivastva. C. M & Sreenivasan . C. “Science of Engineering Materials”, New Age International