SOLAR SYSTEM

Detailed explanation-1: -A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image.

Detailed explanation-2: -The reflecting telescopes or Cassegrain telescopes, use the principles of reflecting in spherical and plane mirrors to focus a far-off object near the eye. The major component of a reflecting telescope is the concave mirror.

Detailed explanation-3: -Hence, concave mirrors are used in a telescope instead of using a plane mirror.

Detailed explanation-4: -Catadioptric telescopes were invented in the 1930s and are the most modern design of telescopes. They combine both lenses and mirrors to focus the light towards the eyepiece.