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Showing posts from December, 2021

Mirrors, Magnifying lenses, microscopes and telescopes

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Mirrors shown in yellow reflect light to produce virtual images shown in red. Concave mirrors bend light outward to produce virtual images that are magnified.   Convex lenses used as magnifying lenses or microscopes shown in blue bend light to produce both virtual images and real images. Virtual images are made by spreading out the light and are not inverted. They can not be captured on a screen like the retina. Real images are formed by focusing light and are inverted. They can be captured on a screen.  Magnifying lenses and microscopes are convex lenses that produce virtual images that are magnified. Telescopes are microscopes with a second large convex lens or mirror that captures dim light from big objects far away and focuses them on a spot close to the eye in a  real image that is subsequently magnified.   The convex lens in our eye focuses whatever it sees, whether a real or virtual image, and makes a real image that could be captured by ou...