Explain in detail what is Telescope .
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A small telescope. Licensed from iStockPhoto. noun. The definition of a telescopeis an optical instrument that makes far away objects look closer by using a special arrangement of lenses and mirrors. An optical instrument you use to look at the stars that makes the stars appear closer is an example of a telescope.
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Telescopes use lenses to gather more light than the human eye could collect on its own. They focus the light and make distant objects appear brighter, clearer and magnified. This type of telescope is called a refracting telescope.
A (refracting) telescope consists of two convex lenses: The larger lens is called the objective lens, and the smaller lens used for viewing is called the eyepiece lens. Here the image of the distant object formed by the objective acts as the object for the eyepiece.
The size of an image produced by a lens is proportional to the focal length of the lens. The longer the focal length, the larger the image. The brightness of an image from a telescope depends partly on how much light is collected by the telescope.
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A (refracting) telescope consists of two convex lenses: The larger lens is called the objective lens, and the smaller lens used for viewing is called the eyepiece lens. Here the image of the distant object formed by the objective acts as the object for the eyepiece.
The size of an image produced by a lens is proportional to the focal length of the lens. The longer the focal length, the larger the image. The brightness of an image from a telescope depends partly on how much light is collected by the telescope.
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