An object is placed at a distance of 24cm from a convex lens of focal length 10cm, when an image is obtained on other side of the lens. Calculate the distance of the screen from the lens. Share with your friends Share 0 Sejal Gupta answered this Dear Student, Regards 1 View Full Answer Ruchir Padhye answered this By sign convention, the object is placed to the left. So u = -24 cm, f = 10 cm. So 1/v + 1/u = 1/f 1/v + 1/(-24) = 1/10 1/v = 1/10 - 1/24 1/v = 12 - 5/120 1/v = 7/120 v = 120/7 = 17.14 cm 0