JEE Main 20266 Apr, Morning shiftPhysicsMediumProperties of Solids and Liquids184× since 2002
The two wires A and B of equal cross-section but of different materials are joined together. The ratio of Young's modulus of wire A and wire B is 20/11. When the joined wire is kept under certain tension the elongations in the wires A and B are equal. If the length of wire A is 2.2 m, then the length of wire B is ________ m.