Question: If two point objects close together are to be seen as two distinct objects, the images must fall on the retina on two different cones

If two point objects close together are to be seen as two distinct objects, the images must fall on the retina on two different cones that are not adjacent. That is, there must be an unactivated cone between them. The separation of the cones is about 1 μm.

(a) What is the smallest angle the two points can subtend?.

(b) How close can two points be if they are 20 m from the eye?

P1 P2 P2

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