4b. A converging lens (fi- 30.0 cm) is placed at a distance of 50.0 cm from a diverging lens a lens (f₂=-30.0 cm) shown in the figure. The combination forms a final image at distance 50.0 cm behind the diverging lens. (a) Where is the first object located? (b) Draw a ray diagram to indicate all the positions of the objects and images for both lenses.

4b. A converging lens (fi- 30.0 cm) is placed at a distance of 50.0 cm from a diverging lens a lens (f₂=-30.0 cm) shown in the figure. The combination forms a final image at distance 50.0 cm behind the diverging lens. (a) Where is the first object located? (b) Draw a ray diagram to indicate all the positions of the objects and images for both lenses.