A wire obeys Hooks law is of length 11 when it is in equilibrium under a tension F1. Its length becomes 12 when the tension is increased to F2. The energy stored in the wire during this process is
1.(F1+F2) (121+122)
2.(F1+F2) (122-112)
3.(F1+F2) (12-11)
4.(F1+F2) (12-11)
Posted Date:-2021-08-27 05:17:15