As per IS 456-2000 which one of the following represents the modulus of elasticity of concrete in Mpa?
1
0.7 \(\sqrt {{{\rm{f}}_{{\rm{ck}}}}} \)
2
5000 \(\sqrt {{{\rm{f}}_{{\rm{ck}}}}} \)
3
5700 \(\sqrt {{{\rm{f}}_{{\rm{ck}}}}} \)
4
500 \(\sqrt {{{\rm{f}}_{{\rm{ck}}}}} \)