Question

Define centre of curvature of lens?

Answer 1

The geometrical centre of lens is called as centr of curvature or optical centre.

Answer 2

Hey there!

Answer:


$\textbf{Centre of curvature}$: The centre of the sphere, of which the mirror forms a part is called the centre of curvature.

It is represented by point $\textbf{C}$.


$\textbf{Other Definitions}$:


$\textbf{Radius of curvature}$: The radius of sphere, of which the mirror forms a part, is called radius of curvature of the mirror.

It is denoted by R.


$\textbf{Pole}$: The centre of the spherical mirror is called it's pole.

It is represented by the point P.


$\textbf{Principal focus}$: The point at which, a narrow beam of light incident on the mirror parallel to its principal axis, after reflection from the mirror, meets or appears to come from, is called Principal focus .

It is represented by the point F.


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