How far apart are an object and an image formed by a 62 cm focal-length converging lens if the image is 2.75X larger than the object and is real?

Answer 1

Use the lens equation again. You should have memorized it by now.

Substitute 2.75 do for di and solve for image distance, di.

Distance from object to image = di + do = 3.75 di.

Answer 2

Mass spring system is hung vertically and set into oscllation Why does the motion eventually stops?