Question

what is radios of curvature​

Answer 1

• In differential geometry, the radius of curvature, R, is the reciprocal of the curvature. For a curve, it equals the radius of the circular arc which best approximates the curve at that point. For surfaces, the radius of curvature is the radius of a circle that best fits a normal section or combinations thereof.

Answer 2

$\Large\underline{\underline{\sf \green{Radius~ Of~ Curvature}:}}$

• It can be defined as the distance between the centre of curvature of the mirror and the pole of the mirror on the principal axis.

• The radius of curvature is also a measure of how curved the mirror is.

$\small\underline{\underline{\sf \green{Formula}:}}$

• R= 1/K

where,

• R is the radius of curvature
• K is the curvature.