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please tell working of binoculars in detail​

Answer 1

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Binoculars

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Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal mounted military models.

Typical Porro prism binoculars

A typical Porro prism binoculars design

Unlike a (monocular) telescope, binoculars give users a three-dimensional (3D) image: for nearer objects the two views, presented to each of the viewer's eyes from slightly different viewpoints, produce a merged view with an impression of depth.

Answer 2

The objective lens makes a focused image of the object. The eyepiece lens makes the image bigger. ... So binoculars have a pair of prisms (large wedges of glass) inside them to rotate the image through 180 degrees