A load of 1kg weight is attached to one end of a steel wire of cross sectional area 3 and Young’s modulus 1011 N/m2. The other end is suspended vertically from a hook on a wall, and then the load is pulled horizontally and released. When the load passes through its lowest position the fractional change in length is (g=10m/s2)
(1) 10–4
(2)10–3
(3) 103
(4) 104
