Draw a ray diagram to show the image formation by a concave mirror, when the object is kept between its focus and the pole.

Draw a ray diagram to show the image formation by a simple microscope. What is the nature of the image formed?

Draw a ray diagram to show how the image is formed when the object is placed between f and 2 f distances from a convex lens.Deduce the relation between the distances of he oject and the image from the lens and the focal length of the lens under this condition.

By giving sign-conventions, derive the lens formula relating object distance, image distance and focal length for a thin convex lens. Draw a ray diagram to show the formation of image of an object placed between optical centre and focus of a convex lens.

Draw a ray diagram to illustrate the iamge formation by a Newtonian type of reflecting telescope.

Draw a ray diagram to show image formation when the concave mirror produces a real, inverted and magnified image of the object.

Draw a ray diagram to show image formation in a compound microscope. Find expression for its magnifying power.