Hi friends, "Engineering Physics" is an essential subject in the first year of a Bachelor of Technology (B.Tech) program. It aims to provide students with a comprehensive understanding of the fundamental principles of physics and their applications in engineering. The course covers a broad range of topics, including classical mechanics, thermodynamics, electromagnetism, and waves. It introduces students to the fundamental principles of physics, such as motion, force, energy, and momentum, which are essential for understanding the physical phenomena underlying various engineering applications.

The course also covers topics such as wave optics, particle physics, and relativity, which are critical for understanding the principles behind many modern technologies, including lasers, fiber optics, and nuclear power.

The subject helps students develop problem-solving skills and enables them to apply physics concepts and techniques to real-world engineering problems. By the end of the course, students will have gained a solid foundation in physics, which will be useful in their future studies and careers in various fields of engineering, such as mechanical, electrical, and civil engineering.

On this thread, I am sharing handwritten lecture notes for PHYSICS for First Year Engineering Students. This is a handwritten note given in class by the professor and will help you prepare for your semester exam. The course for most universities will be covered in these notes and will give you a crisp understanding of the various concepts.

Frame of reference, Inertial & non-inertial frames, Galilean transformations, Michelson- Morley experiment, Postulates of special theory of relativity, Lorentz transformations, Length contraction, Time dilation, Velocity addition theorem, Variation of mass with velocity, Einstein’s mass energy relation, Relativistic relation between energy and momentum, Massless particle.

Continuity equation for current density, Displacement current, Modifying equation for the curl of magnetic field to satisfy continuity equation, Maxwell’s equations in vacuum and in non conducting medium, Energy in an electromagnetic field, Poynting vector and Poynting theorem, Plane electromagnetic waves in vacuum and their transverse nature. Relation between electric and magnetic fields of an electromagnetic wave, Energy and momentum carried by electromagnetic waves, Resultant pressure, Skin depth.

Black body radiation, Stefan’s law, Wien’s law, Rayleigh-Jeans law and Planck’s law, Wave particle duality, Matter waves, Time-dependent and time-independent Schrodinger wave equation, Born interpretation of wave function, Solution to stationary state Schrodinger wave equation for one-Dimensional particle in a box, Compton effect.

Coherent sources, Interference in uniform and wedge shaped thin films, Necessity of extended sources, Newton’s Rings and its applications. Fraunhoffer diffraction at single slit and at double slit, absent spectra, Diffraction grating, Spectra with grating, Dispersive power, Resolving power of grating, Rayleigh’s criterion of resolution, Resolving power of grating.

Fibre Optics: Introduction to fibre optics, Acceptance angle, Numerical aperture, Normalized frequency, Classification of fibre, Attenuation and Dispersion in optical fibres. Laser: Absorption of radiation, Spontaneous and stimulated emission of radiation, Einstein’s coefficients, Population inversion, Various levels of Laser, Ruby Laser, He-Ne Laser, Laser applications.

The course also covers topics such as wave optics, particle physics, and relativity, which are critical for understanding the principles behind many modern technologies, including lasers, fiber optics, and nuclear power.

The subject helps students develop problem-solving skills and enables them to apply physics concepts and techniques to real-world engineering problems. By the end of the course, students will have gained a solid foundation in physics, which will be useful in their future studies and careers in various fields of engineering, such as mechanical, electrical, and civil engineering.

On this thread, I am sharing handwritten lecture notes for PHYSICS for First Year Engineering Students. This is a handwritten note given in class by the professor and will help you prepare for your semester exam. The course for most universities will be covered in these notes and will give you a crisp understanding of the various concepts.

**List of chapters and topics covered in these Physics PDF hand written notes for Engineering First year:
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Module - 1 Relativistic Mechanics:Module - 1 Relativistic Mechanics:

Frame of reference, Inertial & non-inertial frames, Galilean transformations, Michelson- Morley experiment, Postulates of special theory of relativity, Lorentz transformations, Length contraction, Time dilation, Velocity addition theorem, Variation of mass with velocity, Einstein’s mass energy relation, Relativistic relation between energy and momentum, Massless particle.

**Module- 2 Electromagnetic Field Theory:**Continuity equation for current density, Displacement current, Modifying equation for the curl of magnetic field to satisfy continuity equation, Maxwell’s equations in vacuum and in non conducting medium, Energy in an electromagnetic field, Poynting vector and Poynting theorem, Plane electromagnetic waves in vacuum and their transverse nature. Relation between electric and magnetic fields of an electromagnetic wave, Energy and momentum carried by electromagnetic waves, Resultant pressure, Skin depth.

**Module- 3 Quantum Mechanics:**Black body radiation, Stefan’s law, Wien’s law, Rayleigh-Jeans law and Planck’s law, Wave particle duality, Matter waves, Time-dependent and time-independent Schrodinger wave equation, Born interpretation of wave function, Solution to stationary state Schrodinger wave equation for one-Dimensional particle in a box, Compton effect.

**Module- 4 Wave Optics:**Coherent sources, Interference in uniform and wedge shaped thin films, Necessity of extended sources, Newton’s Rings and its applications. Fraunhoffer diffraction at single slit and at double slit, absent spectra, Diffraction grating, Spectra with grating, Dispersive power, Resolving power of grating, Rayleigh’s criterion of resolution, Resolving power of grating.

**Module- 5 Fibre Optics & Laser:**Fibre Optics: Introduction to fibre optics, Acceptance angle, Numerical aperture, Normalized frequency, Classification of fibre, Attenuation and Dispersion in optical fibres. Laser: Absorption of radiation, Spontaneous and stimulated emission of radiation, Einstein’s coefficients, Population inversion, Various levels of Laser, Ruby Laser, He-Ne Laser, Laser applications.

**The handwritten notes file on Engineering Physics for BTech First Year students, can be downloaded by clicking on the PDF icon below.**#### Downloads

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