Draw a ray diagram to show the
position of image formed when an object is placed between focus F and pole P of concave mirror.

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 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.

Describe with the help of diagram the natrue, size and position of the image formed when and object placed at centre of curvature of a concave mirror.

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 the ray diagrams and find position,nature and size of image formed by a convex lens,when object is placed: between F and 2F

A convex lens of focal lenght 20 cm is placed coaxially wih a convex mirror of radius of curvature 20 cm.the two are kept at 15 cm apart.A point object lies 60 cm in front of the convex lens.Draw a ray diagram to show the formation of the image by the combination.Determine the nature and position of the image formed.

Draw the ray diagrams and find position,nature and size of image formed by a convex lens,when object is placed: beyodn 2 F

Form the image in case an object is moved from infinity to the concave mirror.

Draw the ray diagrams and find position,nature and size of image formed by a convex lens,when object is placed:At F.