Problem an object and a screen are separated by 2500 cm a, Ask an Expert

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Problem: An object and a screen are separated by 25.00 cm. A convex lens is placed between them, 14.00 cm from the object. In this position it causes a sharp image of the object to form on the screen.

Part A- What is the focal length of the lens, in centimeters?

If possible just a brief explanation how you got the solution?

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