What is chromatic aberration in a telescope?
A) Light of different colors reflecting from the objective mirror of the telescope comes to a focus at different points in front of the mirror.
B) Light of different colors comes to a focus at different points behind the objective lens inside the telescope.
C) Light striking the lens at different distances from the center of the lens comes to a focus at different points inside the telescope.
D) The objective lens varies in thickness from center to edge, and light passing through the different thicknesses suffers different amounts of absorption, thereby coloring the image.

Question

Quizplus · Accepted Answer

Chromatic aberration occurs because lenses refract different colors of light at slightly different angles, leading to different colors focusing at different distances from the lens.

What Is Chromatic Aberration in a Telescope