Question

A divergent lens has a focal length of 30cm. At what distance should an object of height 5cm from the optical centre of the lens be placed so that its image is formed 15cm away from the lens ?Find the size of the image also. Draw a ray diagram to show the formation of image in the above situation.​

Answer 1

Answer:

Therefore, the object should be placed 30 cm from the optical centre and the size of the image formed is 2.5 cm. Additional information: The distance between focal point and lens is called focal length.