construction principles

The water flowing in a river is collected by constructing a high rise dam. This stored water is then allowed to fall from the top of the reservoir on to a water turbine located at the bottom of the dam. The fast moving water rotates the blades of the water turbine, which in turn rotates..

.6%). Solar cells were not popular for a long time because of its low efficiency. The first practical solar cell was constructed in 1954 with an efficiency of 1%. Today we have selenium based solar cells with an efficiency of 2..

Huygen's Principle - Christian Huygen Huygen proposed a hypothesis for the geometrical construction of the position of a common wavefront at any instant during the propagations of waves in a medium. The postulates are: Every point on the given wavefront called 'primary wavefront..

Wave optics is based on wave theory of light put forward by Huygen and modified later by Fresnel. According to the wave theory, light is a form of energy, which travels through a medium in the form of transverse waves. A wavefront is defined as the locus of all the particles of a medium, which are ..

Positron Emission Tomography (PET) - PET is a sophisticated version of radio isotope scanning. The principle behind PET scanning is as follows. Short - lived radio isotopes such as 1 1 C, 1 3 N or 1 5 O are produced and incorporated into a solution (of glucose) that can be injected into t..

>The average intensity of light in the interference pattern ..

>A simple representation of the X-ray diffraction is shown as follows: fig 2.22 - A simple representation of X-ray diffraction The process was based upon the principle that a crystal may be considered to be made up of a number of parallel equidistant atomic planes, as represented by lines..

A few examples of Transmission Lines Transmission lines are everywhere and are of infinite variety but regardless of type, length, or construction, all operate according to the same basic principles. Typical transmission lines include coaxial cable, a two-wire line, a parallel-p..