DEFINE OPTICAL CENTRE OF SPHERICAL MIRROR ?
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The Optical centre of the lens is defined as the point which lies on the principal axis through the rays of light passes without any deflection or it can be defined as the central point of the lens through which a ray of light passes without suffering any deviation
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DEFINE OPTICAL CENTRE OF SPHERICAL MIRROR ?
The optical centre is defined as the geometric centre of the curved lens . Focus :The principal focus is defined as the point on the principal axis where the light rays traveling parallel to the principal axis after refraction actually meet (for a convex lens) or appear to meet (for a concave lens).
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