Answer:
2.67 cells at 500x magnification...
Explanation:
So, four cells are present at 200x magnification and are covering the full diameter of lens. by using a 500x magnification, it means that magnification is increased 1.5 times. So, the number of cells visible will be decreased by a factor of 1.5. So, decreasing 4 cells by a factor of 1.5 means 2.66666666667 or 2.67 cells at 500x magnification. Resolution has to be increased by a factor of 1.5 to produce a view-able clear image of cells.
