All materials obey Hooke's law within elastic limit. When elastic limit is
reached, the tensile strain
(A) Increases very quickly
(B) Decreases very quickly
(C) Increases in proportion to stress
(D) Decreases in proportion to stress
reached, the tensile strain
(A) Increases very quickly
(B) Decreases very quickly
(C) Increases in proportion to stress
(D) Decreases in proportion to stress