11.33: For the set-up
l2tw4yn v ,)ftzkii/* +ec 0nbshown of a candle and screen placed 30 cm apart, there are two locations at which a thin converging lens can be placed to produce a focused real image. One real image of the candle appears on the screen when the lens is located 12 cm from the candle
4vlbik/t),e*z cy2nft+ 0wn i. From this location, how does this lens now have to be moved in order to make the second real image of the candle appear on the screen?