तनन प्रतिबल (σ) और अनुदैर्ध्य विकृति (ε) के अनुपात को _________ के रूप में परिभाषित किया जाता है।

The ratio of shear stress to the corresponding shear strain within the elastic limit is known as . I. Modulus of rigidity II. Shear modulus

A metal rod of material Young's modulus Y has length ℓ and cross-sectional area A. If its length is doubled and cross-sectional area is halved, what will happen to its Young's modulus Y?