Physical optics is a branch of optics which deals with nature of light, mechanism of its production, emission and propagation through space. It deals with the phenomenon of Interference, Diffraction and Polarization of light. From the experimental observations, it is evident that light is form of energy. There are two methods of transfer of energy. (i) by stream … Continue reading FUNDAMENTAL THEORIES OF LIGHT

String theory and M-theory – A Guided article

A surprising property of string/M-theory is that extra dimensions are required for the theory's consistency. In this regard, string theory can be seen as building on the insights of the Kaluza-Klein theory, in which it was realized that applying general relativity to a five-dimensional universe (with one of them small and curled up) looks from … Continue reading String theory and M-theory – A Guided article