Articles Related To Science Engineering

December 5, 2019
MANY APPLICATIONS OF PHOTOELECTRIC EFFECT AROUND US BUT UNKNOWN ABOUT IT

Simply, the photoelectric effect is the emission of electrons when light hits a material. According to Einstein’s (in 1905) quantum theory of radiation, light is a particle called quantum and the energy carried by each quantum s called photon. Einstein who got Nobel Prize in this theory explains light as a particle though the light is wave because it shows some phenomena […]

December 5, 2019
IMPLEMENTATION OF HALL EFFECT

Hall voltage is discovered by Edwin Hall in 1879. Hall Effect is caused due to the nature of current in a conductor. Hall effect is the production of voltage across an electrical conductor, transverse to electric current in the conductor and to an magnetic field perpendicular to current. We all talk about the theory and […]

December 5, 2019
PHOTOELECTRIC EFFECT

The wave nature of radiation suggests that energy is emitted or absorbed continuously as an electromagnetic wave. There were also mysteriously associated with light. In 1887, during Hert’s electromagnetic wave experiment he discovered the photoelectric effect. When light struck a metal surface, some electrons near the surface absorbed enough energy to overcome the attraction of […]

December 5, 2019
Deflection of Light By A Gravitational Field

According to the general theory of relativity, a ray of light will experience the curvature of its path passing through a gravitational field, this curvature being similar to that experienced by a path of a body that is projected through a gravitational field. As a result of this theory, we should expect that a ray […]