......... device we use lens
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Explanation:
A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. ... Devices that similarly focus or disperse waves and radiation other than visible light are also called lenses, such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses.
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Binoculars and Telescopes. ...
Glasses. ...
Cameras. ...
Flashlights. ...
Lasers. ...
Peepholes
Answer:
An astronomical telescope is an optical instrument used to view distant objects. It is made up of two convex lenses, the objective lens and the eyepiece.
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