Access JNTUK & JNTUGV Engineering Physics Important Questions PDF Download 2024
Syllabus
Unit 1 :Wave Optics
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.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 :Lasers and Fiber optics
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 Aperture- Classification of optical fibers based on refractive index profile and modes –Propagation of electromagnetic wave through optical fibers – Applications.
Unit 3 :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 equation- Piezoelectricity.
Unit 4 :Acoustics and Ultrasonics
Acoustics : Introduction – requirements of 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 :Crystallography and X-ray diffraction
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.
JNTUK & JNTUGV Engineering Physics Important Questions PDF Download 2024
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