A harbour pilot can read the controls nearby clearly, but a navigation marker in the distance appears blurred. An eye examination shows that the pilot's eyeball is longer than normal.
Which option identifies where light from the navigation marker is focused relative to the retina and what the corrective lens does to the light rays?
Behind the retina; a convex lens brings the light rays together.
In front of the retina; a concave lens spreads the light rays out.
Behind the retina; a concave lens spreads the light rays out.
In front of the retina; a convex lens brings the light rays together.
102 exam-style questions on Edexcel GCSE Biology 2.4 The eye, covering 2.4.1 Structure and function of the eye and 2.4.2 Eye defects and their correction. Each one has a worked solution and a mark scheme showing where the marks go.