Internet Encyclopedia of Science
OPTICS & OPTICAL PHENOMENA
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magnifying glass


ray diagrams of different ways a magnifying glass can be used
Ray diagrams showing different ways in which a magnifying glass can be used: (A) as a simple microscope; (B) to form a real image; (C) as a burning glass
A converging lens used to form an enlarged image of an object. In normal use, the object is held within the focal length of the lens and an enlarged, upright virtual image is seen through the lens. A magnifying glass can also be used to form a real but inverted image of an object if the object is placed outside the focal length of the lens. A large converging lens can also be used as a burning glass, focusing light and heat from the Sun.


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