A. Focal Length
B. Radius of Curvature
C. Power
D. Magnification
Submitted by: Rashid Mehmood
The distance between the optical centre and principal focus of a lens is called focal length. Focal length of a lens depends on the refractive index of the glass and its curvature.
Correct Answer: Focal Length ✔
Last Updated: December 25, 2019