GKFix MCQ Question

What is the primary reason for the term (1/R1 - 1/R2) appearing in the lens maker's formula?

• A. It quantifies the combined effect of the curvatures of the two lens surfaces on the lens's focal length
• B. It represents the thickness of the lens
• C. It accounts for spherical aberration
• D. It is related to the magnification of the lens