Question

The relation between Y, $\eta$ and B is

• A. $\frac{1}{Y} = \frac{1}{3\eta} + \frac{1}{\text{9B}}$
• B. $\frac{9}{Y} = \frac{1}{\eta} + \frac{3}{B}$
• C. $\frac{1}{\eta} = \frac{1}{B} + \frac{1}{Y}$
• D. $\frac{9}{Y} + \frac{3}{\eta} + \frac{1}{B}$

Answer 1

Answer: (D)

$\frac{9}{Y} + \frac{3}{\eta} + \frac{1}{B}$

Answer 2

: The relation between $Y,\eta$and B is

$\frac{9}{Y} = \frac{1}{B} + \frac{3}{\eta}$

Where Y is Young’s modulus, B is Bulk modulus and $\eta$modulus of rigidity.