The lens formula relating the image distance,p,to the focal length,f,and object distance,s,is The magnification of a lens is
-A movie projector is equipped with a 0.5-m focal length lens that is positioned 0.505 m in front of the film.The distance in front of the lens that a screen must be placed for an image to be in focus is __________.

Question

The lens formula relating the image distance,p,to the focal length,f,and object distance,s,is  The magnification of a lens is 
-A movie projector is equipped with a 0.5-m focal length lens that is positioned 0.505 m in front of the film.The distance in front of the lens that a screen must be placed for an image to be in focus is __________.

Quizplus · Accepted Answer

The Answer of The lens formula relating the image distance,p,to the focal length,f,and object distance,s,is  The magnification of a lens is 
-A movie projector is equipped with a 0.5-m focal length lens that is positioned 0.505 m in front of the film.The distance in front of the lens that a screen must be placed for an image to be in focus is __________.

The Lens Formula Relating the Image Distance,p,to the Focal Length,f,and