Concept explainers
A horse is looking straight ahead at a person who is standing quite close. The image of the person spans much of the vertical extent of the retina. What can we say about the image on the retina?
A. The person’s head is in focus; the feet are out of focus.
B. The person’s feet are in focus; the head is out of focus.
C. The person’s head and feet are both in focus.
D. The person’s head and feet are both out of focus.
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