If the resolving power of a human eye is 0.125 mm, and the resolving power of a certain electron microscope is 0.84 nm. how many times better is the resolving power of this electron microscope than the human eye?

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.