The object distance for a convex lens is 5.0 cm and the image distance is 10.0 cm. The height of the object is 4.0 cm. What is the height of the image?
magnification(m)=imagedistance(v)÷objectdistance
Here, the magnification will be 2. Therefore, the height of the image will be twice the height of the object, which is, 4*2= 8 cm.