Two wires A and B are of the same material. Their lengths are in the ratio 1:2 and the diameters in the ratio 2:1 If they are pulled by the same force, what will be the ratio of their increase in lengths?

Two wires A and B are of the same material. Their lengths are in the ratio 1:2 and the diameters in the ratio 2:1 If they are pulled by the same force, what will be the ratio of their increase in lengths?