Here, we have provided the links containing the study materials, which will help you study and prepare for your B.Tech Engineering Physics 2020 edition examinations. Referring to the connections we’ve provided below and the links containing the study materials in PDF format, and the list of recommended books that we’ve provided below, you will be able to ace your examinations. We have also provided you with further details that will allow you to do well in your exams and learn more. These study materials help you understand the concepts and everything quickly and creates a better space for you to work on. These study materials give you the best resources to study from.

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## Recommended Books

- Streetman B. G., Solid State Electronics, Prentice Hall India (2nd Edition) 1986.
- Avadhanulu M. N. and P.G. Kshirsagar, A text Book of Engineering Physics, (7th Edition) 2004.
- Dekkar A.J.; Electrical Engineering Materials; Prentice Hallog India Publication, 1992.
- Kenneth Krane; Modern Physics; (2 nd Edition); John Wiley Eastern, 1998.
- Pillai S. O., Solid State Physics, New Age International Publishers, 3 rd edition, 1999.
- Laser Fundamentals, William T. Silfvast, 2nd edn, Cambridge University Press, New York (2004)
- Fundamentals of Physics, 6th Edition, D. Halliday, R. Resnick, and J. Walker, John Wiley, and Sons, New York (2001).
- Introduction to solid-state physics,7th Edn, Charls Kittel, Wiley, Delhi (2007)
- Practical Physics, R.K. Shukla, Anchal Srivastava, New age international (2011)
- B.Sc. Practical Physics, C.L Arora, S. Chand &Co. (2012)
- Resnick, Walker and Halliday, Fundamentals of Physics, John Willey and Sons. Inc, 6th Edition, 2005.

## Syllabus

##### Unit I: Electrostatics- 8

Boundary conditions and Boundary value problems in electrostatics, The Uniqueness theorem, Laplace and Poisson’s equations in electrostatics and their applications, method of electrical images and their simple applications, energy stored in the discrete and continuous system of charges.

##### Unit II: Wave Optics- 8

Methods of formation of coherent sources, Theory of Interference, Fresnel’s Biprism, Displacement of Fringes, thin-film interference, Newton’s ring. Fraunhofer diffraction at single slit and grating, Rayleigh’s criterion of the resolution, resolving power of grating.

##### Unit III: Optical activity and Modern Optics- 8

Production of plane-polarized light by reflection and Double refraction, Nicol prism. Optical activity, Fresnel’s theory, polarimeter (Laurentz and Biquartz). Principle of fiber optics, numerical aperture, attenuation, dispersion in optical fibers, material dispersion, waveguide dispersion, intermodal and intramodal dispersion, Pulse dispersion in step-index fiber, Main components of laser, Einstein’s coefficients, He-Ne laser, Nd-YAG laser, and their applications.

##### Unit IV: Properties of Matter and Relativistic Mechanics

Viscosity, Poiseulli’s equation, Frame of reference, Michelson-Morley experiment and its implications, Galilean transformation equations, Einstein’s postulates, Lorentz transformation equations, and their consequences, energy mass relation, relativistic kinetic energy.

##### Unit V: Quantum Physics

Compton effect, Basic postulates of quantum mechanics, Wave function and its physical admissibility, orthogonality and normalization of wave functions, Heisenberg’s uncertainty principle(no derivation) and its applications to (non-existence of electron in nucleus, Bohr’s radius), Schrodinger’s equation and its application to particle in 1-D box and finite well.

## Important Questions

- Define Electronic Polarization and obtain the relevant mathematical expressions for Electronic Polarization in terms of the radius of the atoms.
- A paramagnetic material has a magnetic field intensity of 104 A/m. If the Susceptibility of the material at room temperature is 3.7×10-3 calculate the magnetization and flux density of the material.
- Illustrate on the construction and working principle of a He-Ne Laser giving its energy level diagram.
- Write down any four applications of Lasers.
- Derive an expression for acceptance angle for an optical fiber? How it is related to the numerical aperture.
- What are the properties of Nano Materials?
- How the Nano Materials are fabricated using bottom-up, top-down and chemical vapor deposition methods.
- Briefly, explain about Edge and Screw Dislocations.
- Explain the band theory of solids qualitatively and use it for classification of the Materials.
- Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are 4600 cm2 /volt-second and 2700 cm2 /volt-second respectively.
- If the electron and hole densities are each equal to 3 x 1013 per cm2, calculate the conductivity.
- Give an account of domain structure and how the hysteresis curve is explained on the basis of Domain theory of ferromagnetism.
- Explain the following i) Single-mode optical fiber ii) Multimode optical fiber iii) Step-index optical fiber iv) Graded index optical fiber
- Show that FCC Crystals are closely packed than BCC and SC crystals by working out the packing factors.
- Derive an expression for the concentration of Vacancies at any given temperature.
- What are the factors affecting Architectural Acoustics and explain the remedies?
- Discuss different types of Ultrasonic Production Systems.
- Derive an expression for Internal Fields in Solids.
- Explain the Hysteresis curve on the basis of Domain theory of Ferromagnetism.
- Derive the relation between Einstein’s Coefficients.
- explain Optical Fiber Communication Link with a block diagram.
- Describe any three processes by which Nano materials are fabricated.
- Explain the Scanning Electron Microscopy.
- Write a note on Edge and Screw dislocations and explain the significance of Burger’s Vector.
- Explain the principle of Optical Fibre Communication and write a note on Attenuation.
- Discuss different types of Polarizations in Dielectrics.
- Derive an expression for Acceptance Angle and Numerical Aperture of an Optical Fiber.