Electrostatics

Raman Spectrum: The Raman effect can be easily understood, by considering the scattering of the photon of the incident light with the atoms or molecules.…

In 1928, Sir C.V. Raman discovered experimentally, that the monochromatic light is scattered when it is allowed to pass through a substance. The scattered light…

Raman spectroscopy or Raman Spectrum is used in many varied fields, like, non-destructive, microscopic, chemical analysis and imaging is required. (i) It is widely used…

Lord Rayleigh was the first to deal with scattering of light by air molecules. The scattering of sunlight by the molecules of the gases in…

The electromagnetic theory, however, failed to account for the phenomenon of photo electric effect. In 1900, Planck had suggested that energy was emitted and absorbed,…

When light passes through a colloidal solution its path is visible inside the solution. This is because, the light is scattered by the particles of…

Maxwell showed that light was an electromagnetic wave, conveying electromagnetic energy and not mechanical energy as believed by Huygens, Fresnel and others. Electromagnetic Theory covers…

Corpuscular Theory: According to Newton, a source of light or a luminous body continuously emits tiny, massless (negligibly small mass) and perfectly elastic particles called corpuscles.…

Wave Theory: According to Huygens, light is propagated in the form of waves, through a continuous medium. Huygens assumed the existence of an invisible, elastic medium…

If the solar spectrum is closely examined, it is found that it consists of large number of dark lines. These dark lines in the solar…