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The Telescope
As shown in the diagram, refracting telescopes have an objective lens that slows down light as it passes through. This convex lens allows the light to become bent.The shape of the lens means light near the top of the lens is bent down and light near the bottom of the lens is bent up. Somewhere inside the tube the light beams cross, but before they can spread out again the eyepiece lens bends the light beams again using converging lens and sends them to the eye. Therefore, the two lens used inside the telescope can enlarge the image so that it can be viewed easily by the naked eye. The refracting telescope uses angles of refractions with convex lenses to enable far away images to be viewed with the naked eye.
HOW LENSES WORK INSIDE A TELESCOPE
