0 Monochromatic light of wavelength 620 nm passes through a

Last updated: 6/11/2023

0 Monochromatic light of wavelength 620 nm passes through a very narrow slit S and then strikes a screen in which are two parallel slits S and S as in Figure P37 70 Slit S is directly in line with S and at a distance of L 1 20 m away from S whereas S is displaced a distance d to one side The light is detected at point P on a second screen equidistant from S and S When either one of the slits S and S is open equal light intensities are measured at point P When both are open the intensity is three times larger Find the minimum possible value for the slit separation d S S DS d Sq I P