Engineering Physics Material PDF Download | JNTUK R20 1-1

JNTUK 1-1 Engineering Physics Materials PDF Download

Students studying JNTUK Mech, Chemical Branches, can download Unitwise R20 1-1 Engineering Physics Materials/Notes PDFs.


  1. Bridging the gap between physics at school at 10+2 and UG-level engineering courses.
  2. The importance of the optical phenomenon (i.e., Its Engineering applications include interference, diffraction, and polarization.
  3. Understanding lasers’ emission mechanisms and utility for coherent light sources for low- and high-energy applications. Study of propagation through optical fibers and implications for visual communications.
  4. New utility avenues are now available for magnetic and dielectric materials that could be used to make micro-devices.
  5. It is essential to be familiar with theoretical and practical acoustics for engineering acoustics. Explain the importance of ultrasound and how it is used in NDT applications.
  6. Using Bragg’s law, learn about the periodic arrangement of atoms within Crystalline solids.

Wave Optics
Interference Principle Of Superposition -Interference in thin film (Reflection Geometry & Applications -Colors In Thin Films- Newton’s Rings – Determination wavelength and refractive Index
Diffraction: Introduction – Fresnel and Fraunhofer diffraction due to single slit, double slit – N-slits(Qualitative) – Grating – Dispersive power and resolving power of Grating(Qualitative).
Polarization Introduction – Types of polarization – Polarization by reflection and refraction and Double refraction – Nicol’s Prism -Half-wave and Quarter-wave plates

Download UNIT-1 Material PDF

Reference-1 | Ref-2

Lasers & Fiber optics
Lasers Introduction – Characteristics of laser – Spontaneous or stimulated radiation – Einstein’s coefficients Population inversion – Lasing action- Pumping mechanism – Ruby laser- He-Ne laser. Applications of lasers
Fiber optics: Introduction -Principle of optical fiber- Acceptance Angle-Numerical ApertureClassification of optical fibers based on refractive index profile and modes -Propagation of electromagnetic wave through optical fibers – Applications.

Download UNIT-2 Material PDF


Engineering Materials
Dielectric Materials: Introduction – Dielectric polarization – Dielectric polarizability, Susceptibility and Dielectric constant – Types of polarizations- Electronic (Quantitative), Ionic (Quantitative) and Orientation polarizations (Qualitative) – Lorentz internal field- Clausius-Mossotti equationPiezoelectricity.

Magnetic Materials: Introduction – Magnetic dipole moment – Magnetization-Magnetic susceptibility and permeability – Origin of the permanent magnetic moment – Classification of magnetic materials: Dia, para, Ferro, antiterror & Ferrimagnetic materials – Domain concept for Ferromagnetism & Domain walls (Qualitative) – Hysteresis – soft and hard magnetic materials- Eddy currents- Engineering applications.

Download UNIT-3 Material PDF

Acoustics & Ultrasonics
Acoustics – Introduction – requirements for an acoustically sound hall- Reverberation- Reverberation times- Sabine’s formula (Derivation by growth and decay method – Absorption coefficient and determination – Factors that affect the acoustics in buildings and their remedial actions
Ultrasonics – Introduction – Properties and Production by Magnetostriction and Piezoelectric Methods – Detection and Acoustic Grating – Non-Destructive Testing. – Pulse echo system via transmission and reflection modes. – Applications.

Download UNIT-4 Material PDF

Crystallography, X-ray Diffraction
Crystallography – Space lattice and Basis, Unit Cell, and lattice parameters. Bravais Lattice is a crystal system (3D). – Coordination number – Packing fraction of SC, BCC, & FCC. – Miller indexes – Separation between successive (hkl).
Xray diffraction Bragg’s Law – Xray Diffractometer Crystal structure determination by Laue and powder methods

Download UNIT-5 Material PDF


  • Engineering Physics – Dr. M.N. Avadhanulu & Dr. P.G. Kshirsagar, S. Chand and Company
  • Engineering physics – D.K. Battacharya, Poonam Tandon. Oxford University Press.
  • Engineering Physics by P.K.Palanisamy SciTech publication.


  • Fundamentals of Physics – Halliday Resnick and Walker. John Wiley &Sons
  • Engineering Physics – M.R.Srinivasan, New Age Publications
  • Engineering Physics – D K Pandey and S. Chaturvedi at Cengage Learning
  • Engineering Physics – Sanjay D.Jin, D. Sahasrambudhe, and Girish University Press


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