Classic Newtonian reflector telescopes use a mirror shaped like ________.
A)a parabola
B)a concave spherical surface
C)a convex spherical surface
D)a hyperbola

Question

Quizplus · Accepted Answer

A parabolic mirror is the best choice for a Newtonian reflector telescope as it is the only mirror shape that can focus all incoming parallel rays of light to a single point, resulting in sharp and clear images. This makes it ideal for observing distant celestial objects. Concave and convex spherical surfaces do not possess the same focusing ability, and hyperbolic mirrors are complicated to manufacture and require precise alignment.

Classic Newtonian Reflector Telescopes Use a Mirror Shaped Like ________