An object `O` iis kept infront of a converging lens of focal length `30 cm` behind which there is a plane mirror at `15 cm` from the lens as shown in the figure.

An object O is kept infront of a converging lens of focal length 30 cm behind which there is a plane mirror at 15 cm from the lens.

A convex lens of focal length 15 cm is placed on a plane mirror. An object is placed at 30 cm from the lens. The image is

A thin linear object of size 1mm is kept along the principal axis of a convex lens of focal length 10cm. The object is at 15cm from the lens. The length of the image is:

A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in the figure. At what distance x from the lens should a convex mirror of focal length 60 cm, be placed so that final image coincide with the object?

An object of size 3.0 cm is placed 14 cm in front of a concave lens of focal length 21 cm . Describe the image produced by the lens. What happens if the object is moved further from the lens ?

An object of size 3.0 cm is placed 14 cm in front of a concave lens of focal length 21 cm . Describe the image produced by the lens. What happens if the object is moved further from the lens ?

An optical system consists of a thin convex lens of focal length 30 cm and a plane mirror placed 15 cm behind the lens. An object is placed 15 cm in front of the lens. The distance of the final image from the object is

An object, a convex lens of focal length 20 cm and a plane mirror are arranged as shown in the figure. How far behind the mirror is the second image formed?

A concave mirror of focal length 20 cm and a convex lens of focal length 10 cm are kept with their optic axes parallel but separated by 0.5 mm as shown in the figure. The distance between the the lens and mirror in 10 cm. An object of height 3 mm is placedon the optic axis of lens at a distnace between the lens and mirror is 10 cm. An object of height 3 mm is placed on the optic axis of lens at a distance 15 cm from the lens. Find the length of the image formed the mirror in mm.

A point object O is placed at a distance of 20 cm from a convex lens of focal length 10 cm as shown in figure. At what distance x from the lens should a concave mirror of focal length 60 cm, placed so that final image coincides with the object ?