AP and TS EAMCET Engineering Model Paper 16

Three identical wires each of length 0.2 m, area of cross section 1 Sq. mm and Young's modulus of material 1010N∕m2 are connected to three blocks of masses 10 kg, 20 kg and 30 kg kept on smooth table as shown m figure. If 120 N force is acted on 30 kg mass, the elongation m the string with tension ′T1′ is