Q. A combination of two thin lenses of the same material with focal length $f_{1}$ and $f_{2},$ arranged on a common axis minimizes chromatic aberration. If the distance between them is
A) $\frac{\left( f_{1} + f_{2} \right)}{4}$
B) $\frac{\left( f_{1} + f_{2} \right)}{2}$
C) $\left( f_{1} + f_{2} \right)$
D) $2\left( f_{1} + f_{2} \right)$
Explanation
The correct answer is Option B: $\frac{\left( f_{1} + f_{2} \right)}{2}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.