A material has a modulus of elasticity (Young's modulus) of' E' and a bulk modulus 'K'. Which of the following relationships between 'E' and 'K' is true for an isotropic material with Poisson's ratio 'v'?
1
E = 3K(1 - 2v)
2
E = 3K(1 + v)
3
E = K(1 - v)
4
E = 2K(1 + v)