IS 456 of 2000 gives the modulus of elasticity as _______

A)
Ec = 5000 fck²
B)
Ec = 5000 fck⋅⁵
C)
Ec = 5000 fck³
D)
Ec = 5000 fck⅓

Correct Answer :   Ec = 5000 fck⋅⁵


Explanation : IS 456 of 2000 gives the modulus of elasticity as Ec = 5000 fck⋅⁵ where Ec is the modulus of elasticity in N/mm²