at what distance from a converging lens of focal lenght 12cm must an object be placed in order that an image of magnification 1 will be produced?Solve this using lens formula Share with your friends Share 0 Roop Narayan answered this Dear student1v-1u=1f1v-1u=112-vu=1-v=u1-u-1u=112-2u=112u=-2424 cm, infront of mirrorregards 0 View Full Answer