HomeEveryday Science MCQsThe distance between the optical centre of a convex lens and its principal focus is called its_______? 988. The distance between the optical centre of a convex lens and its principal focus is called its_______?By Admin / September 17, 2025 A. Focal Length B. Radius of Curvature C. Power D. Magnification ✅ The correct answer is option A.
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