Homework Help: physics

Posted by andrew on Monday, May 21, 2012 at 6:10am.

An object is placed 75.0 cm from a screen.
a)Where should a converging lens of focal length 8.0 cm be placed to form an image on the screen?
shorter distance __cm from the screen
farther distance __cm from the screen
b)Find the magnification of the lens.
magnification if placed at the shorter distance ___
magnification if placed at the farther distance ___

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