Focus

Assertion:- The image focus ( 2^(nd) focus) and the object focus ( 1^(st) focus) are on the oppostie side of the biconvex or biconcave lens. Reason:- The radii of curvature of a biconvex lens and biconcave lens are on the opposite side of the lens.

Statement-1: The image focus (2^(nd) focus) and the object ( 1^(st) focus) for a biconvex lens are on the opposite side of the lens. Statement-2: The centre of curvature of a biconvex lens are on the opposite side of the lens.