Question

The correct relation between the degrees of freedom $f$ and the ratio of specific heat $\gamma$ is :

• A. $f=\frac{2}{\gamma -1}$
• B. $f=\frac{2}{\gamma +1}$
• C. $f=\frac{1}{\gamma +1}$
• D. $f=\frac{\gamma +1}{2}$

Answer 1

The correct option is A $f=\frac{2}{\gamma -1}$

We know that,

$\gamma =1+\frac{2}{f}$

$\Rightarrow f=\frac{2}{\gamma -1}$

Hence, option $\left(\text{A}\right)$ is correct.