The limit to the eye's acuity is actually related to diffraction by the pupil. 1. what is the angle between two just‑resolvable points of light for a 3.75 mm diameter pupil, assuming the average wavelength of 524 nm ? 2. take the result to be the practical limit for the eye. what is the greatest possible distance a car can be from a person if he or she can resolve its two headlights, given they are 1.30 m apart? 3. what is the distance between two just‑resolvable points held at an arm's length (0.900 m) from a person's eye? mm