Ansel places an object 23.0 cm from a thin convex lens along the axis.If a real image forms at a distance of 14.0 cm from the lens,what is the focal length of the lens?

Question

Quizplus · Accepted Answer

The thin lens equation is 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance. We can rearrange this equation to solve for f: f = do * di / (do + di). Plugging in the given values, we get f = 23.0 cm * 14.0 cm / (23.0 cm + 14.0 cm) = 8.70 cm.

Ansel Places an Object 23