An object is placed at a distance equal to 2f in front of a convex lens. Draw a labelled ray diagram to show the formation of image. State two characteristics of the image formed.

(a) An object is placed between f and 2f in front of a convex lens. Draw a labelled ray- diagram to show the formation of image. (b) State whether the image formed is real or virtual. © State whether the image formed is diminished or enlarged.

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

An object is placed at a distance at a of 10 cm from a convex mirror of focal length 5 cm. (i) Draw a ray-diagram showing the formation of image. (ii) State two characteristics of the image formed. (iii) Calcualate the distance of the image from mirror.

Draw a ray diagram to show image formation by a concave lens.

An object lies at a distance of 2f from a concave lens of focal length f. Draw a ray-diagram to illustrate the image formation.

When an object is placed between F and 2F in front of a convex lens, the image formed is

An object placed 50 cm from a lens produces a virtual image at a distance of 10 cm in front of the lens. Draw a diagram to show the formation of image. Calculate focal length of the lens and magnification produced.