The stiffness of spring is,
(A) Deflection per unit of axial force
(B) Force per unit cross-sectional area of spring
(C) Ratio of mean coil diameter to wire diameter
(D) Force required to produce unit deflection
(A) Deflection per unit of axial force
(B) Force per unit cross-sectional area of spring
(C) Ratio of mean coil diameter to wire diameter
(D) Force required to produce unit deflection