Question

The number of independent elastic constant of a solid is=

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (C)

3

$\begin{array}{c}\text{For Isotopic solid:}\text{It has same properties in all}\\ \text{direction is same.}\end{array}$

$\begin{array}{c}\text{1. young's modulus (Y) will be constant:}\\ \text{2. Shear modulus (G) ; will also be constant}\\ \text{3. Bulk modulus (B) will also be constant}\end{array}$

$\begin{array}{c}\text{total no. of elastic constant}=3\\ \text{total no of independent elastic constant}=3\end{array}$