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11PH201 APPLIED PHYSICS Credits 3:0:0 Course Objective: Students will be able to • Get knowledge on the basic concepts of quantum mechanics and its applications • Understand the working principle of variouslasers and its application in fibre optics • Study the principles of acoustics and applications of ultrasonic waves • Get more knowledge on engineering materials and its applilcations Course Outcome: Students applies physics principles of latest technology to solve practical problems of real world Unit I: Quantum Physics Planck’s hypothesis, ,- Wave nature of matter- De Broglie wave –De Broglie wavelength of electrons-, phase velocity and group velocity, properties of matter waves, Experimental verification of matter waves- Davisson and Germer experiment, G.P. Thomson’s experiment, Heisenberg’s uncertainty principle. Shrodinger’s time independent wave equation , Applications: particle in a box, Zero point energy and overtones, SEM and its applications Unit II : Lasers Properties of laser beam-Principle of laser-Einstein’s theory of stimulated emission- Population inversion-Types of lasers-Nd :YAG, He:Ne, CO2 and Semiconductor lasers- Application of lasers-Computer peripherals(CD-ROM)- Holography: Principle, recording and reconstruction. Medical applications Unit III: Fibre optics Principle of optical fibre-Propagation in optical fibres-Acceptance angle-Numerical aperture-V number, Structure of optical fibres- -Types of optical fibres based on material, mode and refractive index, Attenuation, Applications-Optical fibres for communication-Fibre optic sensors-Temperature sensor, Fibre endoscope. Unit IV: Acoustics and Ultrasonics Classification of sound, Characteristic of musical sound-Loudness- Weber and Fechner’s lawDecibel- Absorption coefficient- Reverberation time-Sabines formula(No derivation),Factors affecting acoustics of buildings and their remedies - Ultrasonics-classification of ultrasonic waves-properties of ultrasonic waves- ultrasonic - production- Magnetostriction and piezoelectric methods, Acoustic grating, SONAR, NDT. Unit V: Materials Solar cells-Light emitting diodes-Liquid crystal display, Superconductors-Miessner effect, Type I and Type II superconductors, Superconducting magnets, SQUIDS Magnetic materials: Dia, Para and Ferro magnetic materials, I-H and B-H curves, Magnetic recording and reading. Text Book: Hitendra K Malik, A K Singh – Engineering Physics, McGraw –Hill Publishing company Ltd, Publication,2008 Reference Books: 1. M.N. Avadhanulu, P.G. Kshirshagar – A Text Book of Engineering Physics- S.Chand & Co Ltd, 2008 2. R.K. Gaur, S.L. Gupta – Engineering Physics – Dhanpat Rai Publications, 7th edition,2001 3. P.K. Mittal – Applied Physics – I.K. International Publishing House Pvt.Ltd, 2006 4. M. Arumugam- Materials Science – Anuradha Publications, 1998 5. G.Aruldhas, Engineering Physics, PH1 Learning, 2010