When dots are placed on a page from a laser printer, they must be close enough so that you do not see the individual dots of ink. To do this, the separation of the dots must be less than Raleigh’s criterion. Take the pupil of the eye to be 2.9 mm and the distance from the paper to the eye of 31 cm; find the minimum separation of two dots such that they cannot be resolved.
I tried using Rayleigh's criterion to solve for the angle. I then converted it from radians to degrees and used it in the equation for resolving power, but did not get the right answer. (I got 14.50 cm)