The ideal shape for the primary mirror of a telescope is
A)concave circular.
B)convex circular.
C)concave parabolic.
D)convex parabolic.
E)plane.

Question

Quizplus · Accepted Answer

The ideal shape for the primary mirror of a telescope is a concave parabolic shape. This shape allows all incoming light rays to converge to a single point, creating a sharp and focused image. A convex or plane mirror would cause the light to diverge, resulting in a blurry or distorted image. A circular shape alone is not sufficient for producing a clear image, as the reflective surface must also be shaped correctly.

The Ideal Shape for the Primary Mirror of a Telescope