An object and a screen are separated by 15.0 cm.A convex lens is placed between them,6.82 cm from the object.In this position it causes a sharp image of the object to form on the screen.What is the focal length of the lens?
A)4.69 cm
B)41.0 cm
C)3.72 cm
D)12.5 cm
E)4.09 cm

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The Answer of An object and a screen are separated by 15.0 cm.A convex lens is placed between them,6.82 cm from the object.In this position it causes a sharp image of the object to form on the screen.What is the focal length of the lens?
A)4.69 cm
B)41.0 cm
C)3.72 cm
D)12.5 cm
E)4.09 cm

An Object and a Screen Are Separated by 15