Refer to the diagram given below. A lens with two different refractive indicesis shown. If the rays are coming from a distant object, then how many imageswill be seen?

An object is placed 12 cm in front of a lens with a focal length of 8.0 cm.(i) (2 marks)Calculate the image distance.(ii) (2 marks)Sketch a ray diagram of the image, and lens, showing at least the three principal rays. You may include more relevant rays if you wish.

An object is placed at a distance of 20 cm from a convex lens of focal length 10 cm. The image is formed on the other side of the lens at a distance20 cm10 cm40 cm30 cm

Two thin lenses are kept coaxially in contact with each other and the focal length ofthe combination is 80 cm. If the focal length of one lens is 20 cm, the focal length ofthe other would be

How many images are formed for a point object kept in between the two plane mirrors at right angles to each other? Show them by drawing a ray diagram.

An object placed in front of a lens, forms a virtual image whose magnifications is 0.5. The focal length of the lens is 30cm. Calculate the object distance.(with sign)