The limit to the eye's acuity is actually related to diffraction by the pupil. what is the angle between two just-resolvable points of light for a 1.75 mm diameter pupil, assuming the average wavelength of 554 nm? number o take your result to be the practical limit for the eye. what is the greatest possible distance a car can be from you if you can resolve its two headlights, given they are 1.30 m apart? number what is the distance between two just-resolvable points held at an arm's length (0.600 m) from your eye? number to find the separation angle, use the rayleigh criterion. and to find the distances for the second and third parts, use triangles and trigonometry also, don't forget to convert to sl units.