An object is placed 69.5 cm from a screen.(a) Where should a converging lens of focal length 9.0 cm be placed to form a clear image on the screen? (Give your answer to at least one decimal place.)

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