PhysicsEasy148×since 2002Q7940The length of metallic wire is l₁ when tension in it is T₁. It is l₂ when the tension is T₂. The original length of the wire will be :AT1l1−T2l2T2−T1{{{T_1}{l_1} - {T_2}{l_2}} \over {{T_2} - {T_1}}}T2−T1T1l1−T2l2Bl1+l22{{{l_1} + {l_2}} \over 2}2l1+l2CT2l1+T1l2T1+T2{{{T_2}{l_1} + {T_1}{l_2}} \over {{T_1} + {T_2}}}T1+T2T2l1+T1l2DT2l1−T1l2T2−T1{{{T_2}{l_1} - {T_1}{l_2}} \over {{T_2} - {T_1}}}T2−T1T2l1−T1l2Check answerSkip