In a 350-Mm Single Lens Reflex Camera (SLR),the Distance from the Lens

Multiple Choice

In a 35.0-mm single lens reflex camera (SLR) ,the distance from the lens to the film is varied in order to focus on objects at varying distances.Over what distance range must a lens of 55-mm focal length vary if the camera is to be able to focus on objects ranging in distance from infinity down to 0.60 m from the camera?

A) 5.55 mm
B) 4.44 mm
C) 16.7 mm
D) 22.2 mm
E) 7.77 mm