Purpose Of Telescopes Essay

PHYSICS REFRACTING TELESCOPES saujaniah suthendran
The main purpose of a telescope is to gather as much light as possible to view an image the human eye cannot see in detail. The telescopes is a tool used in the study of planets, plants, and other objects. This report explains the different parts of the refracting telescopes, a type of astronomical telescope. In order for the telescope to be advantageous it must manipulate light.

Telescopes collect a larger amount of light compared to your eyes therefore resulting in a brighter image
Telescopes can resolve more detail than your eye without the need of any assistance such as glasses
Telescopes can magnify images so you can see in more detail
The behaviour of light passing through different media
There are two types of telescopes -refractors and reflectors. The

Refractive telescopes work by bending light through its lenses which include the objective lense and the eyepiece lense. The objective lens makes a small real image of the focused object which the eyepiece lense acts as magnifying glass which produces an enlarged image of the object that was focused on through collecting electromagnetic radiations. The objective lens tends to be much thicker in the middle compared to the edges of the lens. As light shines through the lense it will cause it to bend more towards the edges than through the middle. As this happens it allows the light to cross at focal point. The image is created at the eyepiece which helps our eyes to collect all the light and this magnifies the image of the object that was focused on. When the rays (parallel) enter the objective lens the image will be diminished, inverted and real at the focal point. When adjusted by the eyepiece so that the image form crosses the focal point of the eyepiece the image will be enlarged and magnified. This can be seen on the diagram