Question

According to Hook’s law of elasticity, if stress is
increased, then the ratio of stress to strain :
(a) becomes zero (b) remains constant
(c) decreases (d) increases

Answer 1

(b) remains constant

According to Hooke's law, ratio of stress to strain is a constant within the elastic limit.

$\sf{\dfrac{Stress}{Strain}=a\ constant}$

Thus, though stress is increased, the strain also increases by the same amount, and hence the ratio of stress to strain remains constant.