[" A split lens has its two parts separated by a and its focall length is "f" f "],[" placed at a distance "3/12" on the axis of undivided lens as shown."]

A split lens has its two parts separated by a and its focal length is f . An object is placed at a distance (3f)/(2) on the axis of undivided lens as shown. The distance between the virtual source is

A convex lens is cut in half along its principal axis and the two halves are separated by a distance of 12cm. An object is placed 6cm in front of the lens as shown in Figure., Two sharp images are formed on the screen placed 80cm from the object. What is the focal length of the lens?

A convex lens is cut in half along its principal axis and the two halves are separated by a distance of 12cm. An object is placed 6cm in front of the lens as shown in Figure., Two sharp images are formed on the screen placed 80cm from the oject. What is the focal length of the lens?

An object is placed at a distance f in front of a concave lens of focal length f. Locate its image.

An object is placed at a distance f in front of a concave lens of focal length f. Locate its image.

A point object is placed on the optic axis of a convex lens of focal length f at a distance of 2f to the left of it. the diameter of the lens is 'd' . An eye is placed at a distance of 3f to the right of the lens and a distance h below the optic axis. The maximum value of h to see the image is

A convex lens of focal length 15 cm is split into two halves and the two halves are placed at a separation of 120 cm. Between the two halves of convex lens a plane mirror is placed horizontally and at a distance of 4 mm below the principal axis of the lens halves. An object AB of length 2 mm is placed at a distance of 20 cm from one half lens as shown in.figure. The final image of the point A is formed at a distance of n/3 mm from the principle axis. Determine the value of n

The given lens is broken into four parts rearranged as shown. If the initial focal length is f, then after rearrangement the equivalent focal length is

The given lens is broken into four parts rearranged as shown. If the initial focal length is f, then after rearrangement the equivalent focal length is

An object is placed at a distance of f/2 from a convex lens of focal length f. The image will be