TS EAMCET 14-Sep-2020 Shift 2 Solved Paper

Two metal wires A and B have length L and 3 L respectively. The radius of cross-sectional circular area of wire A and B are R and 2R respectively. These wires are joined end to end along their axis. When one end of the combined system is fixed and other end is pulled with a constant force F, the elongation in both the wires is equal. If YA and YB are Youngs modulus of wire A and B, then YB/YA is