The Hubble Space Telescope is 600km above the Earth's surface.
As no diagram is given, it is not possible to answer your question.
simplest possible telescope
Yes, a Hershelian telescope is a type of reflecting telescope in which the primary mirror is tilted so the observer's head does not block the incoming light.
The Chandra telescope was built to observe X-rays.
It is a reflecting telescope
The Hubble Space Telescope is 600km above the Earth's surface.
it is a reflector telescope
A Cassegrain reflector
As no diagram is given, it is not possible to answer your question.
The Newtonian Telescope.
one which reflects of mirrors
It is a reflecting telescope
A reflecting telescope.
no
simplest possible telescope
A telescope with achromatic lenses.