Question

In materials like aluminium and copper, the correct order of magnitude of various elastic modulii is

Answer 1

Shear modulus < Young's modulus < bulk modulus.
Poisson's ratio, σ =lateralstrain( β )longitudinalstrain( α ) For material like copper,  σ =0.33 And, y=3k(1−2σ) Also,9y=1k+3n                          y=2n(1+σ) Hence, n < y < k

Answer 2

Explanation:

Answer: Shear modulii < Young's modulii < bulk modulii

Ductile materials like aluminium and copper can deform easily under tensile stress. So they have very low Shear Modulii

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