JNTUK R20 B.Tech Mechanical 1-1 Engineering Physics Material/ Notes PDF Download

JNTUK R20 B.Tech Mechanical1-1 Engineering Physics Material/ Notes PDF Download: 
The JNTUK R20 B.Tech Engineering Physics Material serves as a vital bridge between the foundational physics concepts taught at the 10+2 level and the more advanced engineering courses at the undergraduate level. It emphasizes the significance of optical phenomena such as interference, diffraction, and polarization in engineering applications, highlighting their practical importance. The course delves into the emission of light, the utilization of lasers for various energy applications, and the transmission of light through optical fibers crucial for optical communications. Additionally, it explores the potential applications of dielectric and magnetic materials in microdevices, while also introducing theoretical acoustics and its relevance in engineering acoustics, including the significance of ultrasound in non-destructive testing.

JNTUK R20 B.Tech 1-1 Engineering Physics Material – Units

Unit 1 Syllabus PDF Download | JNTUK R20 B.Tech 1-1 Physics Material PDF Download

Interference: Principle of superposition –Interference of light – Interference in thin films (Reflection Geometry) & applications -Colors in thin films- Newton’s Rings- Determination of wavelength and refractive index.

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Diffraction: Introduction – Fresnel and Fraunhofer diffraction – 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, refraction, and Double refraction – Nicol’s Prism -Half wave and Quarter wave plates.

Unit 2 Syllabus PDF Download | JNTUK R20 B.Tech 1-1 Engineering Physics Material

Lasers: Introduction – Characteristics of laser – Spontaneous and Stimulated emissions of radiation – Einstein’s coefficients – Population inversion –Lasing action- Pumping mechanisms – 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.

Unit 3 Syllabus PDF Download | JNTUK R20 B.Tech 1-1 Engineering Physics Material

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 permanent magnetic moment – Classification of magnetic materials: Dia, para, Ferro, antiferro & Ferrimagnetic materials – Domain concept for Ferromagnetism & Domain walls (Qualitative) – Hysteresis – soft and hard magnetic materials- Eddy currents- Engineering applications.

Unit 4 Syllabus PDF Download | JNTUK R20 B.Tech 1-1 Engineering Physics Material

Acoustics: Introduction – requirements of the acoustically good hall– Reverberation – Reverberation time– Sabine’s formula (Derivation using growth and decay method) – Absorption coefficient and its determination – Factors affecting acoustics of buildings and their remedial measures.

Ultrasonics: Introduction – Properties – Production by magnetostriction and piezoelectric methods – Detection – Acoustic grating – Non-Destructive Testing – pulse-echo system through transmission and reflection modes – Applications.

Unit 5 Syllabus PDF Download | JNTUK R20 B.Tech 1-1 Engineering Physics Material

Crystallography: Space lattice, Basis, Unit Cell, and lattice parameters – Bravais Lattice – crystal systems (3D) – coordination number – packing fraction of SC, BCC & FCC – Miller indices – separation between successive (hkl) planes.

X-ray diffraction: Bragg’s law – X-ray Diffractometer – crystal structure determination by Laue’s and powder methods.

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