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Engineering Visualization VTU MODULE 1: PROJECTIONS OF PLANE SURFACES    MODULE 2: PROJECTION OF SOLIDS MODULE 3:DEVELOPMENT OF LATERAL SURFACES OF SOLIDS MODULE 4: ISOMETRIC PROJECTIONS

  Visvesvaraya Technological University (VTU) 2nd Sem solved model question paper set 1 maths 21MAT21  

Visvesvaraya Technological University (VTU) 2nd Sem solved model question paper set 2 maths 21MAT21  

 

 

 

 

 

“Researchers are finding harmful effects at lower levels of exposure.” How can this line be interpreted?   “Researchers are finding harmful effects at lower levels of exposure.” How can this line be interpreted?

* A shock wave is a longitudinal wave carrying high energy. * It is narrow wave front of width about a micrometer. * A shock wave is a strong pressure wave produced in an elastic medium such as air, water or a solid.  * It travels at a supersonic speed i.e., for a shock wave Mach number, M> 1. * A shock wave is produced due to supersonic aircraft, explosion, lightening, etc.  * It is characterized by abrupt and discontinuous (non-linear) change in the properties of the medium. That is, there is an extremely rapid rise (adiabatic) in local density, pressure and temperature of the medium.  * A shock wave is a longitudinal wave. But it is different from conventional sound wave (It changes properties of gas rapidly but over a small region) * A shock wave travels faster than sound and its speed depends on its amplitude. * The amplitude decreases rapidly with distance following inverse square law. * A shock wave cannot be directly heard. Over a long distance, shock waves wil...

 

 

Time Table for Semester End Examination Phase – II ( First & Second Year UG and Second Year PG )

 Lasers: Interaction of radiation with matter, Einstein’s coefficients (derivation of expression for energy density).Requisites of a Laser system. Conditions for Laser action. Principle, Construction, and working of CO2 and semiconductor Lasers. Application of Lasers in Defence (Laser range finder) and medical applications- Eye surgery and skin treatment. Optical Fibers: Propagation mechanism, angle of acceptance, Numerical aperture, Modes of propagation, Types of optical fibers, Attenuation, and Mention of expression for attenuation coefficient. Discussion of a block diagram of point-to-point communication, Optical fiber sensors- Intensity based displacement sensor and Temperature sensor based on phase modulation, Merits, and demerits, and Numerical problems. click here to get the Lasers & Optical Fibers physics notes

 Model Question Paper set 2 – Basic Electrical Engineering 21ELE13/23 read also; Model Question Paper set 1 – Basic Electrical Engineering 21ELE13/23