If the Young's modulus of the material is 3 times its modulus of rigidity, then its volume elasticity will be

Options

A. zero
B. infinity
C. `2xx10^(10) N//m^(-2)`
D. `3xx10^(10) N//m^(2)`

Answer

B

Explanation

(b)`Y=2eta(1+sigma)`
`implies 3eta=2eta(1+sigma)`
`implies sigma=(3)/(2)-1=(1)/(2)`
Now substituting the value of `sigma` in the following expression.
`Y=3K(1-2sigma)impliesK=(Y)/(3(1-2sigma))=oo`