Question

explain why
the value
curvature
is zers at the
the cast
centre
of​

Answer 1

Answer:

Centre of curvature - center of curvature of a curve is found at a point that is at a distance from the curve equal to the radius of curvature lying on the normal vector. It is the point at infinity if the curvature is zero. The osculating circle to the curve is centered at the centre of curvature

( b ) Optical centre - is a point on the axis of a lens that is so located that any ray of light passing through it in passing through the lens suffers no net deviation and that may be within, without, or on either surface of the lens.