How a microscope works
An optical microscope consists of two sets of lenses (eyepiece and objective), each of which is equivalent to a convex lens. Objectives have a short focal length and eyepieces have a longer focal length. Working principle: The object first passes through the objective lens to form a magnified real image, and then passes through the eyepiece to form a magnified virtual image. After the second magnification, tiny objects can be clearly seen.
