Question

With the help of suitable diagram explain the meaning of term centeres of curvature optical center and focus

Answer 1

Explanation:

Centre of curvature:

the center of the circle whose center lies on the concave side of a curve on the normal to a given point of the curve and whose radius is equal to the radius of curvature at that point.

opticle centre:

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.

focus:

central point, as of attraction, attention, or activity: The need to prevent a nuclear war became the focus of all diplomatic efforts. Physics. a point at which rays of light, heat, or other radiation meet after being refracted or reflected.

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