Suppose a certain person's visual acuity is such that he can see objects clearly that form an image 4.10 µm high on his retina. What is the maximum distance at which he can read the 75.0 cm high letters on the side of an airplane?

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anonymous · Answer

I'm not really sure how to start this. Not sure which equations to use. Any help would be greatly appreciated.

anonymous · Answer

hmm.. this may help.. if the max distance is d.. then the situation will be like this|dw:1365513958479:dw|