The Object-Lens Distance for a Certain Converging Lens Is 400

Multiple Choice

The object-lens distance for a certain converging lens is 400 mm. The image is three times the size of the object. To make the image five times the size of the object-lens distance must be changed to:

A) 360 mm
B) 540 mm
C) 600 mm
D) 720 mm
E) 960 mm