Why can a compound lens combat a refracting telescope's chromatic aberration?
A) Red light is absorbed by a larger amount than blue light.
B) Red light is refracted by a larger amount than blue light, and different types of glass have different indexes of refraction.
C) Blue light is refracted by a larger amount than red light, and different types of glass have different indexes of refraction.
D) Blue light is absorbed by a larger amount than red light.
E) A compound lens cannot combat chromatic aberration.

Question

Quizplus · Accepted Answer

A compound lens can combat chromatic aberration because blue light is refracted more than red light, and by using different types of glass with varying refractive indices, the lens can be designed to bring different colors of light to the same focus.

Why Can a Compound Lens Combat a Refracting Telescope's Chromatic