The load on a spring per unit deflection, is called (A) Stiffness (B) Proof resilience (C) Proof stress (D) Proof load

The load on a spring per unit deflection, is called 

(A) Stiffness 

(B) Proof resilience 

(C) Proof stress 

(D) Proof load

by

1 Answer

Answer :

(A) Stiffness 

by

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