JEE Mains 2020 Model Paper 4 New Pattern

Two wires of diameter 0.25 cm. One made of steel and other made of brass are loaded as shown in Fig. The unloaded length of the steel wire is 1.5 m and that of brass is 1.0 m. Young’s modulus of steel is 20 × 1011 Pa and that of brass is 0.91 × 1011 Pa. Compute the elongations of steel and brass wires.