00:01
So this problem is asking us if we look away from the book, which we're assuming is pretty close to us, and focus on a distant object, what happens to the eye muscles and what happens to the lenses.
00:16
So i have here a diagram of the eye when it's looking at something far away and when it's looking at something close to us.
00:25
So let's try to figure out which picture is which.
00:28
So we can see in this one we have a point of focus really close to the eye.
00:34
And in this diagram, the point of focus is somewhere out there.
00:37
We can't even see it.
00:38
So we can pretty clearly say that this one is a close object, and this one here is a distant object.
00:56
And now that we see that, we can think about how the lens and the eye muscles look in both the diagrams.
01:03
So with a close object, we can see that this lens out here is really, really curvy.
01:09
For word versus for this distant object, it's more flat...
