For a gas if ratio of specific heats at constant pressure and volume is g then value of degrees of freedom is

Options

A. `(3gamma-1)/(2gamma-1)`
B. `(2)/(gamma-1)`
C. `(9)/(2)(gamma-1)`
D. `(25)/(2)(gamma-1)`

Answer

B

Explanation

As ,`gamma=1+(2)/(f)` (Where,f - degree of freedom)
`gamma-1=(2)/(f) " or "(f)/(2)=(1)/(gamma-1)`
`rArr" " f=(2)/(gamma-1)`