EXPLANATION:

The telescope is used to provide angular magnification of distant objects. The objective has a large focal length and a much larger aperture than the eyepiece because object is very far away. ... This image acts as an object for the eyepiece; it magnifies this image producing a final INVERTED

Telescope, device used to form magnified images of distant objects. The telescope is undoubtedly the most important investigative tool in astronomy. It provides a means of collecting and ANALYZING radiation from celestial objects, even those in the far reaches of the universe.

Most refracting telescopes use two main lenses. The largest lens is called the objective lens, and the smaller lens used for viewing is called the eyepiece lens.

Primary mirror (for reflecting telescopes), which carries the same role as the primary lens in a refracting telescopes. Eyepiece, which magnifies the image. Mounting, which supports the tube, enabling it to be ROTATED. Telescopes can be divided into two main CATEGORIES: refractors and reflectors.