If the deformation is entirely elastic, the Young’s modulus of copper is

Question

A copper rod 400mm long is pulled in tension to a length of 401.2 mm by applying a tensile load of 330 MPa. If the deformation is entirely elastic, the Young’s modulus of copper is                   

         (a) 110 GPa                        (b) 110 MPa

         (c) 11 GPa                           (d) 11 Mpa