The resolution of the eye is ultimately limited by pupil diameter. What is the smallest diameter spot the eye can produce on the retina if the pupil

The resolution of the eye is ultimately limited by pupil diameter. What is the smallest diameter spot the eye can produce on the retina if the pupil diameter is 4.45 ? Assume light with a wavelength of = 600 . (Note: The distance from the pupil to the retina is 25.4 . In addition, the space between the pupil and the retina is filled with a fluid whose index of refraction is = 1.336.)