What problem do refractor telescopes have that reflectors don't?
A)diffraction limited resolution
B)light loss from secondary elements
C)chromatic aberration
D)spherical aberration
E)bad seeing

Question

Quizplus · Accepted Answer

Refractor telescopes typically suffer from chromatic aberration, which causes different colors of light to focus at different points. This can result in blurry or distorted images, particularly when viewing bright objects like planets. Reflectors, on the other hand, can be designed to reduce or eliminate chromatic aberration, since they do not rely on lenses to focus light. Refractor telescopes suffer from chromatic aberration, which causes different wavelengths of light to focus at different points, resulting in blurry images with color fringes. Reflectors, on the other hand, use mirrors that do not suffer from this issue.

What Problem Do Refractor Telescopes Have That Reflectors Don't