A real image of a distant object is formed by a plano-convex lens of its principal axis. Spherical aberration

A real image of a distant object is formed by a plano-convex lens on its principal axis .Spherical abbretion

A convex forms a real image of a poinnt object placed on its principal axis. If the upper half of the lens is painted black

A convex forms a real image of a poinnt object placed on its principal axis. If the upper half of the lens is painted black

A convex forms a real image of a poinnt object placed on its principal axis. If the upper half of the lens is painted black

A convex lens form a real image of a point object placed on its principal axis. If the upper half of the lens is painted black, the image will

A biconvex lens forms a real image of an object placed perpendicular to its principal axis. Suppose the radii of curvature of the lens tend to infinity. Then the image would

An object is placed at a distance of 12 cm from a convex lens on its principal axis and a virtual image of certain size is formed. If the object is moved 8 cm away from the lens, a real image of the same size as that of the virtual image is formed. The focal length of the lens in cm is