UNIT I: INTRFERENCE & DIFFRACTION Div. B Div. D Div. F INTRFERENCE

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1 107002: EngineeringPhysics Teaching Scheme: Lectures: 4 Hrs/week Practicals-2 Hrs./week T.W.-25 marks Examination Scheme: Paper-50 marks (2 hrs) Online -50marks Prerequisite: Basics till 12 th Standard Learning Objectives Το Provide the basic concepts to resolve many Engineering and technological problems. After completing this course students will be able to appreciate and use the Methodologies to analyze and design a wide range of engineering Systems. Το use various techniques for mesurment, Calculation, Control and analysis of Engineering Problems based on the principles of optics, ultrasonic, Acoustic, Quantum Physics, Superconductivity, Laser, Physics of nanoparticles and semiconductor physics Βasic Sciences like Physics also invoke manipulation of processes over micro-and even Nano scale level as there is a growing demand of solid understanding of principles of basic sciences. Physics provides the basic ideas and gives the solution for developing mathematical and Analytical abilities with higher precision. Sr.No Planned Date Syllabus to complete UNIT I: INTRFERENCE & DIFFRACTION Div. B Div. D Div. F INTRFERENCE Interference of waves, Some Basic Formula s Interference in case of Thin Transparent Films (Uniform Thickness) Interference due to Wedge shaped film, Formation of colors in thin films,fringe width, Newton s Rings & Application Engineering Applications of Interference (viz. Optically flat surface, Antireflection

2 coatings, thickness of film. DIFFRACTION Introduction, Diffraction of waves, Fresnel and Fraunhofer diffraction, Fraunhofer diffraction at single slit (Derivation) Diffraction at circular aperture, Plane diffraction grating, Numerical Problem Solving, UNIT II: SOUND ENGINEERING Definitions: Velocity,frequency,wavelength,intensity,lo udness(expression) Timber of sound, reflection of sound,echo,sabines formula, Remedies over reverberation, absorption of sound Absorbent materials, conditions for good acoustics of the building, Noise, its effect and remedies Production of ultrasonic by piezo electric oscillator Production of ultrasonic by magnetostriction oscillator Detection of waves, Engineering application of ultrasonic(non destructive testing,cavitation,mesurment of gauge) UNIT III :POLARIZATION & LASER POLARIZATION Polarization of light waves, Representation of PPL,UPL,Partially polarized loght,production of PPL by1)reflection 2) refraction(using pile of plates) )Selective absorption4)double refraction, Law of Malus Double refraction (Huygens theory, cases of double refraction of crystal cut with the

3 optic axis lying in plane of incidence and i)parallel to surface, ii)perpendicular to surface iii) inclined to surface QWP,HWP,Optical Activity, specific rotation, optically active materials,lcd (as an example of polarization) LASER Requirement for lasing action (stimulated emission, population inversion, pumping). Laser Characteristics working of Ruby laser, Two level laser system- semiconductor laser Construction & working of He-Ne laser Applications i) Communication ii)information technology, Holographyconstruction, reproduction iii)in industry iv)medicine UNIT IV :SOLID STATE PHYSICS Band theory of solids, free electron theory, electrical conductivity, conductivity of conductors and SC, influence of external factors on conductivity(temperature,light,impurity) Fermi energy, density state, concept of effective mass, electrons and holes, Fermi- Dirac probability distribution function Position of Fermi level in intrinsic Sc. (with derivation) and in extrinsic semiconductors (variation of Fermi level with temperature and doping concentration Diffusion and drift current, Hall effect(with derivation) Band structure of PN junction diode under zero bias, forward bias and reverse bias; Transistor working,npn on the basis of band diagrams, Photovoltaic effect, working of a solar cell on the basis of band diagrams and

4 Applications, Numerical UNIT V :WAVE MECHANICS Wave Particle duality of radiation and matter Concept of group velocity and phase velocity Uncertainty principle, Illustration of electron diffraction at a single slit Why an electron cannot exist in the nucleus, Concept of wave function ψ and probability interpretation of ψ Schrodinger s time independent and time dependent wave equations Applications of Schrodinger s time independent wave equations to problems of Particle in a rigid box (infinite potential well), Comparison of predictions of classical mechanics with quantum mechanics Particle in a non-rigid box (finite Potential Well)- Qualitative (results only Tunneling effect, example of tunneling effect in tunnel diode and scanning tunneling microscope UNIT VI: SUPERCONDUCTIVITY AND PHYSICS OF NANOPARTICLE Introduction to superconductivity, Properties of superconductors (zero resistance Meissner effect, critical fields, persistent currents, isotope effect, BCS theory, Type I and type II Superconductors Applications (super conducting magnets, transmission lines etc.), DC and AC Josephson effect. Introduction, Nano particles, Properties of NP (optical, electrical, magnetic, structural, mechanical), Brief description of different methods of

5 synthesis of NP such as physical, chemical, biological, and mechanical Synthesis of colloids. Growth of NP, Synthesis of metal NP by colloidal route, Application of nanotechnology