Question

define optical centre of lens ​

Answer 1

Answer:

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.

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Answer 2

Answer:

this special point on the principal axis of a lens through which light passes without undergoing any bending or deviation is known as optical centre