Question Detail
Question
What is a common solution to correct chromatic aberration in optical instruments?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Page 62 describes the solution: 'Solution: Achromatic doublet, made of lenses of two different materials'. These materials are chosen to have different dispersion properties that cancel out the chromatic effects.
Hint
To correct for color separation caused by one material, you often need another material with complementary properties.