PhysicsMedium148×since 2002Q7941The value of tension in a long thin metal wire has been changed from T₁ to T₂. The lengths of the metal wire at two different values of tension T₁ and T₂ are l₁ and l₂ respectively. The actual length of the metal wire is :Al1+l22{{{l_1} + {l_2}} \over 2}2l1+l2BT1T2l1l2\sqrt {{T_1}{T_2}{l_1}{l_2}}T1T2l1l2CT1l2−T2l1T1−T2{{{T_1}{l_2} - {T_2}{l_1}} \over {{T_1} - {T_2}}}T1−T2T1l2−T2l1DT1l1−T2l2T1−T2{{{T_1}{l_1} - {T_2}{l_2}} \over {{T_1} - {T_2}}}T1−T2T1l1−T2l2Check answerSkip