EXPLANATION OF NULL RESULTS OF MICHELSON AND MORLEY EXPERIMENT BY CLASSICAL MECHANICS PART II

Interferometry is the branch of optics in which experiments are conducted on wave nature of light. The light waves are superimposed to generate interference fringes and measurements are made. In these experiments where diffraction and interference are observed, the wavefront of light plays a very important role. While interpreting the results of these experiments the role of wavefront is completely ignored resulting into wrong predictions. In such an experiment conducted by Michelson and Morley to measure the velocity of earth in space the role of wavefront was ignored. It has been established by the results of Fizeau experiment and other similar experiments that speed of light is constant and it is not effected by the motion of source of light and motion of medium in which it propagates. Which later on become the second postulate of special theory of relativity. In the present article null results of Michelson and Morley experiment is discussed in a very different way keeping in view constancy of speed of light, wavefront of light and Huygen's principle according to classical mechanics.