Question 1
Classic Newtonian reflector telescopes use a mirror shaped like ________.
◦ a parabola
◦ a convex spherical surface
◦ a concave spherical surface
◦ a hyperbola
Question 2
The first telescopes, and most amateur telescopes, rely on the human eye to observe objects. The first improvement on this observation method used ________.
◦ photographic film
◦ projection systems
◦ polyspectral scanners
◦ digital cameras