In a experiment of double slit having 500 nm light, the slits each encompass a width of .1 mm
i) When the interference fringes are 5 mm apart on a screen that is 4 m from the slits, find out the separation of the slits.
ii) Determine the distance from the center of pattern to the first diffraction minimum on one side of the pattern.
iii) Determine how many interference fringes will be seen in the central maximum in the diffraction pattern?