An object AB is placed between O and `F_1` on the principal axis of a converging lens as shown in the diagram. Copy the diagram and by using three standard rays starting from point A, obtain an image of the object AB.

An object AB is placed between 2F, and F, on the principal axis of a convex lens as shown in the diagram. Copy the diagram and using three rays starting from point A, obtain the image of the object formed by the lens.

An object AB is placed between 2F_(1)andF_(1) on the principal axis of a convex lens as shown in the diagram : Copy the diagram and using three rays starting from point A, obtain the image of the object formed by the lens.

An object AB is placed between O and F_(1) on the principal axis of a converging lens as shown in the diagram. Mark is an error by the Council. We suggest you to use '2F_(1)' instead of '1F_(1)' . Copy the diagram and by using three standard rays starting from point A, obtain an image of the object AB.

An illuminated object is placed on the principal axis of a converging lens so that real image is formed on the other side of the lens. If the object is shifted a little,

A point object O moves from the principal axis of a converging lens in a direction OP. I is the image of O, will move initially in the direction

An object is placed on principal axis of concave mirror at distance of 1.5 f Image will be at

Copy and complete the ray diagram to show the formation of the image of the object AB

Two point objects are placed on principal axis of a thin converging lens. One is 20cm from the lens and other is on the other side of lens at a distance of 40 cm from the lens. The images of both objects coincide. The magnitude of focal length of lens is :-

An object of length 2.0 cm is placed perpendicular to the principal axis of a convex lens of focal length 12 cm. Find the size of the image of the object is at a distance of 8.0 cm from the lens.

An extended object of size 2mm is placed on the principal axis of a converging lens of focal length 10cm. It is found that when the object is placed perpendicular to the principal axis the image formed is 4mm in size. The size of image when it is placed along the principal axis is "____________" mm.