Can you please explain how to solve the following?

1)

A particular person's eye is 2.40 cm in diameter and has a near point (the closest an object can be and still be seen in focus) of 28 cm, and a far point (the farthest an object can be and still be in focus) of innity. What are the effective focal lengths fnear and ff\" of the focusing mechanism (lens plus cornea) corresponding to the near and far points, respectively, of the particular eye? Is the equivalent focusing mechanism of the eye a diverging or converging lens? Justify your answer without using any mathematics, and then see if your answer is consistent with your result in the previous part. 0 It is a converging lens. 0 It is a diverging lens. What is the power P of the eye when viewing an object 25.0 cm away? Assume the lens-to-retina distance is 2.00 cm, and express the answer in diopters. 0.54 P = Incorrect