A symmetric doule convex lens is cut in two equal parts by a plane containing the pricipal axis. If the power of the original lens was 4D, the power of a cut lens will be

A symmetric doule convex lens is cut in two equal parts by a plane perpendiculr to the pricipal axis. If the power of the original lens was 4D, the power of a cut lens will be

A symmetric doule convex lens is cut in two equal parts by a plane perpendiculr to the pricipal axis. If the power of the original lens was 4D, the power of a cut lens will be

There is symmetric bi-convex lens and it is cut in two pieces by a plane containing principal axis. If power of the original lens is 10 D then what will be the power of each part ?

There is a symmetric bi-convex lens and it is cut in two equal parts by a plane passing through the centre of lens and perpendicular to its principal axis. If power of original lens is 10 D then what will be the power of each part of the lens ?

A thini, symmetric double convex lens of power P is cut into three parts A, B, and C as shown in Figure. The power of

A thin double convex lens is cut into two equal pieces A and B by a plane containing principal axis.The piece ' B' is further cut into two more pieces 'C' and 'D' by another plane perpendicular to the principal axis.If the focal power of the original lens is 'P' then those of A and C are

A thin symmetrical double convex lens of power P is cut into three parts, as shown in the figure. Power of A is

If the power of a lens is - 4.0 D, then it means that the lens is a