(a) An object 2 cm tall stands on the principal axis of a converging lens of focal length 8 cm. Find the position, nature and size of the image formed if the object is : (i) 12 cm from the lens (ii) 6 cm from the lens (b) State one practical application each of the use of such a lens with the object in position (i) and (ii).
An object 5 cm high is held 25 cm away from a converging lens of focal length 10 cm. Find the position, size and nature of the image formed. Also draw the ray diagram.