2. Interference in 2D. Coherent green light of wavelength A 500 nm is incident on two very narrow slits. The light has the same phase at both slits. (a) What is the angular separation in radians between the central maximum in in- tensity and an adjacent maximum if the slits are 0.035 mm apart? What would be the separation between maxima in intensity on a screen located 2 m from the slits? What would the angular separation be if the slits were 3.5 mm apart? What would the separation between maxima be on a screen 25 mm from the slits for the spacings of both parts (a) and (c)? The answer is relevant to the maximum resolution along your retina that would be useful given the size of your pupil. The spacing between cones on the retina is about 10 pm. (Of course, you would never want to look directly into a laser beam like this...) How would the location of the maxima change if one slit was covered by a thin lm with higher index of refraction that shifted the phase of light leaving the slit by 7r? Would the separation change