A bi convex lens of focal length `10` cm is cut in two identical parts along a plane perpendicular to the principle axis . The power of the each lens after cut is____D.

If a equiconvex lens of focal length f is cut into two halves by a plane perpendicular to the principal axis, then

A convex lens is of focal length 10 cm. What is its power?

Assertion: A boconvex lens of focal length 10 cm is split into two equal parts by a plane parallel to its principle axis. The focal length o fthe each part will be 20 cm . Reason: Focal length does not depend on the radii of curvature of two surfaces.

A symmetrical biconvex lens of focal length f is cut into four identical pieces along its principal axis and to the perpendicular to principal axis. The focal length of one of four pieces is

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