Tue November 15, 2011 By: Nikhil Gadkari

if aperture is the main point were light passes then what is the use of centre of curvature???

Expert Reply
Wed November 16, 2011
Centres of curvature are the centres of the two spherical surfaces forming the lens. A straight line passing through these centres of curvature is called the principal axis.
Sat September 23, 2017


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