Biology – Microscopes – Magnification = degree to which the size of an image is larger Resolution = degree to which it is possible to distinguish between two objects close together Resolution of human eye – 200um Light microscope = Light passes from under stage – condenser lens – specimen – objective lens – eye piece lens Magnification up to x1500 Resolution of 200nm Actual size = image size / magnification Electron microscope = Resolution of 0.2nm Use magnets instead of lenses Transmission…
Words 5863 - Pages 24