Simple lens problem
Hi, would really really appreciate if you could help this newbie out with a high school physics question. Here it is (its lens and optics)
Bill with a height of 1.8m standing at a distance of 4m away from a camera. If the camera has a lens with a power of + 4.0 D, what is the height of Bill's image on the film?
Help is much appreciated dearest kind souls thanks !
