What will it’s velocity be after 9.00 seconds

41.25 but it rounds up to

B. 41.3 meters/second

The answer is C. 1000x. However an understanding of types of light microscopes is needful. A light microscope uses focused light and lenses to magnify an object. Light microscopes come in several forms. (1) Simple light microscopes use a single lens to magnify an object and cannot reach high magnification just like a handheld lens whose highest clear magnification in the best conditions is 25x. (2) Compound light microscopes use two sets of lenses - an objective lens and an eye piece. This is the type of light microscope whose magnification power reaches between 1000x and 2000x.